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Conserved domains on  [gi|66774206|sp|Q03721|]
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RecName: Full=Voltage-gated potassium channel KCNC4; AltName: Full=KSHIIIC; AltName: Full=Potassium voltage-gated channel subfamily C member 4; AltName: Full=Voltage-gated potassium channel subunit Kv3.4

Protein Classification

potassium voltage-gated channel subfamily C member 4( domain architecture ID 13773175)

potassium voltage-gated channel subfamily C member 4 (KCNC4/Kv3.4) mediates the voltage-dependent potassium ion permeability of excitable membranes

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
BTB_KCNC2_4 cd18415
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-158 2.01e-81

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily C members KCNC2 and KCNC4; KCNC2, also called Shaw-like potassium channel or voltage-gated potassium channel Kv3.2, is a delayed rectifier voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain. It contributes to the regulation of the fast action potential repolarization and in sustained high-frequency firing in neurons of the central nervous system. KCNC4, also called KSHIIIC or voltage-gated potassium channel subunit Kv3.4, is a novel high-voltage-activating, tetraethylammonium (TEA)-sensitive, type-A potassium channel that mediates the voltage-dependent potassium ion permeability of excitable membranes. It plays a pivotal role in oxidative stress-related neural cell damage as an oxidation-sensitive channel. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNC2 and KCNC4 are alpha subunit that form functional homo- or hetero-tetrameric channels (with other alpha subunits) through their BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


:

Pssm-ID: 349722 [Multi-domain]  Cd Length: 124  Bit Score: 252.39  E-value: 2.01e-81
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGGRPETDGGGVGSSGSSGGGGCEFFFDRHPGVFAYVLNYYRTGK 114
Cdd:cd18415   1 NERIILNVGGTRHETYRSTLKTLPGTRLALLASSDPQGDCLTQCSQVGGSDGSPGGGNEFFFDRHPGVFAYVLNYYRTGK 80
                        90       100       110       120
                ....*....|....*....|....*....|....*....|....
gi 66774206 115 LHCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHRDAEEAL 158
Cdd:cd18415  81 LHCPADVCGPLFEEELAFWGIDETDVEPCCWMTYRQHRDAEEAL 124
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
225-483 1.34e-46

Ion transport protein; This family contains sodium, potassium and calcium ion channels. This family is 6 transmembrane helices in which the last two helices flank a loop which determines ion selectivity. In some sub-families (e.g. Na channels) the domain is repeated four times, whereas in others (e.g. K channels) the protein forms as a tetramer in the membrane.


:

Pssm-ID: 459842 [Multi-domain]  Cd Length: 238  Bit Score: 164.36  E-value: 1.34e-46
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206   225 ARVVAFASLFFILVSITTFCLETHeafnidrnvteilrvgnitsvhFRREVETEPILTYIEGVCVLWFTLEFLVRIVCCP 304
Cdd:pfam00520   1 SRYFELFILLLILLNTIFLALETY----------------------FQPEEPLTTVLEILDYVFTGIFTLEMLLKIIAAG 58
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206   305 DTLDFVKNLLNIIDFVAILPFYLEVGLSGLSSkaardvLGFLRVVRFVRILRIFKLTRHFVGLRVLGHTLRASTNEFLLL 384
Cdd:pfam00520  59 FKKRYFRSPWNILDFVVVLPSLISLVLSSVGS------LSGLRVLRLLRLLRLLRLIRRLEGLRTLVNSLIRSLKSLGNL 132
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206   385 IIFLALGVLIFATMIYYAERIGARPSDPRGNDHTDFKNIPIGFWWAVVTMTTLGYGDMYPKTWSGM-------LVGALCA 457
Cdd:pfam00520 133 LLLLLLFLFIFAIIGYQLFGGKLKTWENPDNGRTNFDNFPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFII 212
                         250       260
                  ....*....|....*....|....*.
gi 66774206   458 LAGVLTIAMPVPVIVNNFGMYYSLAM 483
Cdd:pfam00520 213 LGGFLLLNLFIAVIIDNFQELTERTE 238
Potassium_chann pfam11404
Potassium voltage-gated channel; Fast inactivation of voltage-dependant potassium channels ...
1-29 2.16e-14

Potassium voltage-gated channel; Fast inactivation of voltage-dependant potassium channels occurs by a 'ball-and-chain'-type mechanism. It controls membrane excitability and signal propagation in central neurons. Inactivation is regulated by protein phosphorylation where phosphorylation of serine residues leads to a reduction of the fast inactivation.


:

Pssm-ID: 431870  Cd Length: 29  Bit Score: 67.16  E-value: 2.16e-14
                          10        20
                  ....*....|....*....|....*....
gi 66774206     1 MISSVCVSSYRGRKSGNKPPSKTCLKEEM 29
Cdd:pfam11404   1 MISSVCVSSFRGRKSGNKSPSKSCLDEDM 29
 
Name Accession Description Interval E-value
BTB_KCNC2_4 cd18415
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-158 2.01e-81

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily C members KCNC2 and KCNC4; KCNC2, also called Shaw-like potassium channel or voltage-gated potassium channel Kv3.2, is a delayed rectifier voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain. It contributes to the regulation of the fast action potential repolarization and in sustained high-frequency firing in neurons of the central nervous system. KCNC4, also called KSHIIIC or voltage-gated potassium channel subunit Kv3.4, is a novel high-voltage-activating, tetraethylammonium (TEA)-sensitive, type-A potassium channel that mediates the voltage-dependent potassium ion permeability of excitable membranes. It plays a pivotal role in oxidative stress-related neural cell damage as an oxidation-sensitive channel. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNC2 and KCNC4 are alpha subunit that form functional homo- or hetero-tetrameric channels (with other alpha subunits) through their BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349722 [Multi-domain]  Cd Length: 124  Bit Score: 252.39  E-value: 2.01e-81
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGGRPETDGGGVGSSGSSGGGGCEFFFDRHPGVFAYVLNYYRTGK 114
Cdd:cd18415   1 NERIILNVGGTRHETYRSTLKTLPGTRLALLASSDPQGDCLTQCSQVGGSDGSPGGGNEFFFDRHPGVFAYVLNYYRTGK 80
                        90       100       110       120
                ....*....|....*....|....*....|....*....|....
gi 66774206 115 LHCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHRDAEEAL 158
Cdd:cd18415  81 LHCPADVCGPLFEEELAFWGIDETDVEPCCWMTYRQHRDAEEAL 124
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
225-483 1.34e-46

Ion transport protein; This family contains sodium, potassium and calcium ion channels. This family is 6 transmembrane helices in which the last two helices flank a loop which determines ion selectivity. In some sub-families (e.g. Na channels) the domain is repeated four times, whereas in others (e.g. K channels) the protein forms as a tetramer in the membrane.


Pssm-ID: 459842 [Multi-domain]  Cd Length: 238  Bit Score: 164.36  E-value: 1.34e-46
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206   225 ARVVAFASLFFILVSITTFCLETHeafnidrnvteilrvgnitsvhFRREVETEPILTYIEGVCVLWFTLEFLVRIVCCP 304
Cdd:pfam00520   1 SRYFELFILLLILLNTIFLALETY----------------------FQPEEPLTTVLEILDYVFTGIFTLEMLLKIIAAG 58
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206   305 DTLDFVKNLLNIIDFVAILPFYLEVGLSGLSSkaardvLGFLRVVRFVRILRIFKLTRHFVGLRVLGHTLRASTNEFLLL 384
Cdd:pfam00520  59 FKKRYFRSPWNILDFVVVLPSLISLVLSSVGS------LSGLRVLRLLRLLRLLRLIRRLEGLRTLVNSLIRSLKSLGNL 132
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206   385 IIFLALGVLIFATMIYYAERIGARPSDPRGNDHTDFKNIPIGFWWAVVTMTTLGYGDMYPKTWSGM-------LVGALCA 457
Cdd:pfam00520 133 LLLLLLFLFIFAIIGYQLFGGKLKTWENPDNGRTNFDNFPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFII 212
                         250       260
                  ....*....|....*....|....*.
gi 66774206   458 LAGVLTIAMPVPVIVNNFGMYYSLAM 483
Cdd:pfam00520 213 LGGFLLLNLFIAVIIDNFQELTERTE 238
BTB_2 pfam02214
BTB/POZ domain; In voltage-gated K+ channels this domain is responsible for subfamily-specific ...
38-143 6.27e-31

BTB/POZ domain; In voltage-gated K+ channels this domain is responsible for subfamily-specific assembly of alpha-subunits into functional tetrameric channels. In KCTD1 this domain functions as a transcriptional repressor. It also mediates homomultimerization of KCTD1 and interaction of KCTD1 with the transcription factor AP-2-alpha.


Pssm-ID: 426665 [Multi-domain]  Cd Length: 93  Bit Score: 115.77  E-value: 6.27e-31
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206    38 IIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGG-RPETDgggvgssgssggggcEFFFDRHPGVFAYVLNYYRT-GKL 115
Cdd:pfam02214   1 VKLNVGGTRFETLKSTLTRFPDTRLGRLLELECDDyDDDTN---------------EYFFDRSPKHFETILNFYRTgGKL 65
                          90       100
                  ....*....|....*....|....*...
gi 66774206   116 HCPADVCGPLFEEELTFWGIDETDVEPC 143
Cdd:pfam02214  66 HRPEEVCLDEFLEEAEFYGLDELALELC 93
Potassium_chann pfam11404
Potassium voltage-gated channel; Fast inactivation of voltage-dependant potassium channels ...
1-29 2.16e-14

Potassium voltage-gated channel; Fast inactivation of voltage-dependant potassium channels occurs by a 'ball-and-chain'-type mechanism. It controls membrane excitability and signal propagation in central neurons. Inactivation is regulated by protein phosphorylation where phosphorylation of serine residues leads to a reduction of the fast inactivation.


Pssm-ID: 431870  Cd Length: 29  Bit Score: 67.16  E-value: 2.16e-14
                          10        20
                  ....*....|....*....|....*....
gi 66774206     1 MISSVCVSSYRGRKSGNKPPSKTCLKEEM 29
Cdd:pfam11404   1 MISSVCVSSFRGRKSGNKSPSKSCLDEDM 29
BTB smart00225
Broad-Complex, Tramtrack and Bric a brac; Domain in Broad-Complex, Tramtrack and Bric a brac. ...
38-151 1.92e-12

Broad-Complex, Tramtrack and Bric a brac; Domain in Broad-Complex, Tramtrack and Bric a brac. Also known as POZ (poxvirus and zinc finger) domain. Known to be a protein-protein interaction motif found at the N-termini of several C2H2-type transcription factors as well as Shaw-type potassium channels. Known structure reveals a tightly intertwined dimer formed via interactions between N-terminal strand and helix structures. However in a subset of BTB/POZ domains, these two secondary structures appear to be missing. Be aware SMART predicts BTB/POZ domains without the beta1- and alpha1-secondary structures.


Pssm-ID: 197585 [Multi-domain]  Cd Length: 97  Bit Score: 63.48  E-value: 1.92e-12
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206     38 IIINVGGTRHETYRSTLRTLPGTRLAWLAdpdgGGRPETDGGgvgssgssggggCEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:smart00225   2 VTLVVGGKKFHAHKAVLAAHSPYFKALFS----SDFKESDKS------------EIYLDDVSPEDFRALLNFLYTGKLDL 65
                           90       100       110
                   ....*....|....*....|....*....|....
gi 66774206    118 PADvCGPLFEEELTFWGIDEtDVEPCCWMTYRQH 151
Cdd:smart00225  66 PEE-NVEELLELADYLQIPG-LVELCEEFLLKLL 97
PRK10537 PRK10537
voltage-gated potassium channel protein;
422-475 1.00e-03

voltage-gated potassium channel protein;


Pssm-ID: 236711 [Multi-domain]  Cd Length: 393  Bit Score: 41.93  E-value: 1.00e-03
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 66774206  422 NIPIGFWWAVVTMTTLGYGDMYPKTWSGMLVGALCALAGVLTIAMPV-----PVIVNNF 475
Cdd:PRK10537 168 SLSTAFYFSIVTMSTVGYGDIVPVSESARLFTISVIILGITVFATSIsaifgPVIRGNL 226
 
Name Accession Description Interval E-value
BTB_KCNC2_4 cd18415
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-158 2.01e-81

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily C members KCNC2 and KCNC4; KCNC2, also called Shaw-like potassium channel or voltage-gated potassium channel Kv3.2, is a delayed rectifier voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain. It contributes to the regulation of the fast action potential repolarization and in sustained high-frequency firing in neurons of the central nervous system. KCNC4, also called KSHIIIC or voltage-gated potassium channel subunit Kv3.4, is a novel high-voltage-activating, tetraethylammonium (TEA)-sensitive, type-A potassium channel that mediates the voltage-dependent potassium ion permeability of excitable membranes. It plays a pivotal role in oxidative stress-related neural cell damage as an oxidation-sensitive channel. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNC2 and KCNC4 are alpha subunit that form functional homo- or hetero-tetrameric channels (with other alpha subunits) through their BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349722 [Multi-domain]  Cd Length: 124  Bit Score: 252.39  E-value: 2.01e-81
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGGRPETDGGGVGSSGSSGGGGCEFFFDRHPGVFAYVLNYYRTGK 114
Cdd:cd18415   1 NERIILNVGGTRHETYRSTLKTLPGTRLALLASSDPQGDCLTQCSQVGGSDGSPGGGNEFFFDRHPGVFAYVLNYYRTGK 80
                        90       100       110       120
                ....*....|....*....|....*....|....*....|....
gi 66774206 115 LHCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHRDAEEAL 158
Cdd:cd18415  81 LHCPADVCGPLFEEELAFWGIDETDVEPCCWMTYRQHRDAEEAL 124
BTB_KCNC1_3 cd18414
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-161 2.48e-76

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily C members KCNC1 and KCNC3; KCNC1 (also called NGK2, voltage-gated potassium channel subunit Kv3.1, or voltage-gated potassium channel subunit Kv4) and KCNC3 (also called KSHIIID or voltage-gated potassium channel subunit Kv3.3) play important roles in the rapid repolarization of fast-firing brain neurons. Assuming opened or closed conformations in response to the voltage difference across the membrane, the proteins form tetrameric potassium-selective channels through which potassium ions may pass in accordance with their electrochemical gradient. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNC1 and KCNC3 are alpha subunit that form functional homo- or hetero-tetrameric channels (with other alpha subunits) through their BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349721 [Multi-domain]  Cd Length: 117  Bit Score: 239.09  E-value: 2.48e-76
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGGRPETDGGGVgssgssggggcEFFFDRHPGVFAYVLNYYRTGK 114
Cdd:cd18414   2 SDRIVINVGGTRHETYRSTLRTLPGTRLAWLAEPDAHSNFDYDPRAD-----------EFFFDRHPGVFAHILNYYRTGK 70
                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*..
gi 66774206 115 LHCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHRDAEEALDIF 161
Cdd:cd18414  71 LHCPADVCGPLYEEELAFWGIDETDVEPCCWMTYRQHRDAEEALDSF 117
BTB_POZ_Kv3_KCNC cd18379
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-158 7.34e-70

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in KCNC/Kv3 subfamily of Shaw-type voltage-dependent potassium channels; Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. The potassium voltage-gated channel subfamily Kv3, also known as subfamily C, contains four alpha subunit members, Kv3.1 (KCNC1), Kv3.2 (KCNC2), Kv3.3 (KCNC3), and Kv3.4 (KCNC4), which are orthologs of the Shaw gene in Drosophila. Unlike other Kv subfamilies, Kv3 channels typically open only at positive potentials and both, activation and deactivation, in response to changes in voltage are very rapid. They are uniquely associated with the ability of certain neurons to fire action potentials and to release neurotransmitter at high rates of up to 1,000 Hz. Kv3/KCNC subfamily alpha subunits form functional homo- or hetero-tetrameric channels (with other alpha subunits) through their BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349688 [Multi-domain]  Cd Length: 109  Bit Score: 221.50  E-value: 7.34e-70
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGGrPETDGGGvgssgssggggCEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18379   1 IVINVGGVRHETYKSTLRNLPDTRLAWLTETEASA-FDYDPVT-----------GEFFFDRHPGVFAQILNYYRTGKLHC 68
                        90       100       110       120
                ....*....|....*....|....*....|....*....|.
gi 66774206 118 PADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHRDAEEAL 158
Cdd:cd18379  69 PADVCGPLFEEELAFWGIDETQIEPCCWMTYRQHRDAQETL 109
BTB_Shaw-like cd18416
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-161 3.19e-52

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel protein Shaw; Shaw, also called Shaw2, is a voltage-gated potassium channel in Drosophila. It mediates transmembrane potassium transport in excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. Shaw is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349723 [Multi-domain]  Cd Length: 112  Bit Score: 175.15  E-value: 3.19e-52
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGGRPETDgggvgssgssggggcEFFFDRHPGVFAYVLNYYRTGKL 115
Cdd:cd18416   2 NRVVLNVGGIRHETYKATLKKIPATRLSRLTEALANYDPVLN---------------EYFFDRHPGVFAQILNYYRTGKL 66
                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*.
gi 66774206 116 HCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHRDAEEALDIF 161
Cdd:cd18416  67 HYPTDVCGPLFEEELEFWGLDANQVEPCCWMTYTAHRDTQETLAVL 112
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
225-483 1.34e-46

Ion transport protein; This family contains sodium, potassium and calcium ion channels. This family is 6 transmembrane helices in which the last two helices flank a loop which determines ion selectivity. In some sub-families (e.g. Na channels) the domain is repeated four times, whereas in others (e.g. K channels) the protein forms as a tetramer in the membrane.


Pssm-ID: 459842 [Multi-domain]  Cd Length: 238  Bit Score: 164.36  E-value: 1.34e-46
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206   225 ARVVAFASLFFILVSITTFCLETHeafnidrnvteilrvgnitsvhFRREVETEPILTYIEGVCVLWFTLEFLVRIVCCP 304
Cdd:pfam00520   1 SRYFELFILLLILLNTIFLALETY----------------------FQPEEPLTTVLEILDYVFTGIFTLEMLLKIIAAG 58
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206   305 DTLDFVKNLLNIIDFVAILPFYLEVGLSGLSSkaardvLGFLRVVRFVRILRIFKLTRHFVGLRVLGHTLRASTNEFLLL 384
Cdd:pfam00520  59 FKKRYFRSPWNILDFVVVLPSLISLVLSSVGS------LSGLRVLRLLRLLRLLRLIRRLEGLRTLVNSLIRSLKSLGNL 132
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206   385 IIFLALGVLIFATMIYYAERIGARPSDPRGNDHTDFKNIPIGFWWAVVTMTTLGYGDMYPKTWSGM-------LVGALCA 457
Cdd:pfam00520 133 LLLLLLFLFIFAIIGYQLFGGKLKTWENPDNGRTNFDNFPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFII 212
                         250       260
                  ....*....|....*....|....*.
gi 66774206   458 LAGVLTIAMPVPVIVNNFGMYYSLAM 483
Cdd:pfam00520 213 LGGFLLLNLFIAVIIDNFQELTERTE 238
BTB_2 pfam02214
BTB/POZ domain; In voltage-gated K+ channels this domain is responsible for subfamily-specific ...
38-143 6.27e-31

BTB/POZ domain; In voltage-gated K+ channels this domain is responsible for subfamily-specific assembly of alpha-subunits into functional tetrameric channels. In KCTD1 this domain functions as a transcriptional repressor. It also mediates homomultimerization of KCTD1 and interaction of KCTD1 with the transcription factor AP-2-alpha.


Pssm-ID: 426665 [Multi-domain]  Cd Length: 93  Bit Score: 115.77  E-value: 6.27e-31
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206    38 IIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGG-RPETDgggvgssgssggggcEFFFDRHPGVFAYVLNYYRT-GKL 115
Cdd:pfam02214   1 VKLNVGGTRFETLKSTLTRFPDTRLGRLLELECDDyDDDTN---------------EYFFDRSPKHFETILNFYRTgGKL 65
                          90       100
                  ....*....|....*....|....*...
gi 66774206   116 HCPADVCGPLFEEELTFWGIDETDVEPC 143
Cdd:pfam02214  66 HRPEEVCLDEFLEEAEFYGLDELALELC 93
BTB_POZ_Kv cd18317
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-134 2.11e-30

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in voltage-gated potassium (Kv) channels; Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. This family includes several groups of alpha subunits such as KCNA/Kv1 family of Shaker-type Kv channels, KCNB/Kv2 family of Shab-type Kv channels, KCNC/Kv3 family of Shaw-type Kv channels, KCND/Kv4 family of Shal-type Kv channels, KCNF/Kv5 subfamily of Kv channels, KCNG/Kv6 subfamily of Kv channels, KCNV/Kv8 subfamily of Kv channels, and KCNS/Kv9 subfamily of Kv channels. Kv alpha subunits form functional homo- or hetero-tetrameric channels (typically with other alpha subunits from the same subfamily) through their BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif. KCNQ/Kv7 channels are not included in this family, since they do not contain a BTB/POZ domain.


Pssm-ID: 349626  Cd Length: 82  Bit Score: 114.24  E-value: 2.11e-30
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGGRPETDgggvgssgssggggcEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18317   1 VVLNVGGTRFELSRSTLLRFPDTRLGKLAKESHAYDESTN---------------EYFFDRNPEVFEAILDYYRTGELHL 65
                        90
                ....*....|....*..
gi 66774206 118 PADVCGPLFEEELTFWG 134
Cdd:cd18317  66 PSNVCPASFKEELEFWG 82
BTB_POZ_Kv2_KCNB cd18378
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-152 1.30e-28

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in KCNB/Kv2 subfamily of Shab-type voltage-dependent potassium channels; Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. The potassium voltage-gated channel subfamily Kv3, also known as subfamily C, contains two alpha subunit members, Kv2.1 (KCNB1) and Kv2.2 (KCNB2), which are orthologs of the Shab gene in Drosophila. They are delayed-rectifier potassium currents in various neurons, although their physiological roles often remain elusive. Kv2/KCNB subfamily alpha subunits form functional homo- or hetero-tetrameric channels (with other alpha subunits) through their BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349687 [Multi-domain]  Cd Length: 109  Bit Score: 110.18  E-value: 1.30e-28
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGTRL----------AWLADPDGGGrPETDgggvgssgssggggcEFFFDRHPGVFA 104
Cdd:cd18378   1 SRRVLLNVGGVRHEVLWRTLDRLPRTRLgrlrecntheSLLELCDDYD-LEDN---------------EYFFDRHPGAFT 64
                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*...
gi 66774206 105 YVLNYYRTGKLHCPADVCGPLFEEELTFWGIDETDVEPCCwmtyrQHR 152
Cdd:cd18378  65 SILNFYRTGKLHMPEEMCVLSFSQELEYWGIDEIYLESCC-----QHR 107
BTB_POZ_Kv4_KCND cd18380
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
37-152 3.18e-25

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in KCND/Kv4 subfamily of Shal-type voltage-dependent potassium channels; Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. The potassium voltage-gated channel subfamily Kv4, also known as subfamily D, contains three alpha subunit members, Kv4.1 (KCND1), Kv4.2 (KCND2), and Kv4.3 (KCND3), which are orthologs of the Shal gene in Drosophila. They are A-type potassium channels that mediate the native, fast inactivating (A-type) K+ current (IA) described both in the nervous system (A currents) and the heart (transient outward current). Kv4/KCND subfamily alpha subunits form functional homo- or hetero-tetrameric channels through their BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif. They are modulated by cytoplasmic KChIPs/KCNIPs (Kv-channel interacting proteins), which are small calcium binding proteins with EF-hand-like domains.


Pssm-ID: 349689 [Multi-domain]  Cd Length: 102  Bit Score: 100.13  E-value: 3.18e-25
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  37 KIIINVGGTRHETYRSTLRTLPGTRLA-----WLADPDGGgrpetdgggvgssgssggggcEFFFDRHPGVFAYVLNYYR 111
Cdd:cd18380   1 RIVINVSGRRFETWKNTLEKYPDTLLGstekeFFYDDDTK---------------------EYFFDRDPEIFRHILNFYR 59
                        90       100       110       120
                ....*....|....*....|....*....|....*....|.
gi 66774206 112 TGKLHCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHR 152
Cdd:cd18380  60 TGKLHYPRHECISAYDDELAFFGILPEIIGDCCYEDYRDRK 100
BTB_POZ_Shab-like cd18413
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-152 3.08e-24

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Drosophila melanogaster potassium voltage-gated channel protein Shab and similar proteins; Shab is a slow delayed rectifier voltage-gated potassium channel in Drosophila. It mediates transmembrane potassium transport in excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. Shab is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349720 [Multi-domain]  Cd Length: 109  Bit Score: 97.64  E-value: 3.08e-24
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGTRLAWLADPDgggrpeTDGGGVGSSGSSGGGGCEFFFDRHPGVFAYVLNYYRTGK 114
Cdd:cd18413   1 NRRVVINVGGVKHEVLWRTLDRMPHTRLGKLRDSN------THEAIVELCDDYSLADNEYFFDRHPRSFASILNFYRTGK 74
                        90       100       110
                ....*....|....*....|....*....|....*...
gi 66774206 115 LHCPADVCGPLFEEELTFWGIDETDVEPCCwmtyrQHR 152
Cdd:cd18413  75 LHLVEEMCVLAFSDDLEYWGVDELYLESCC-----QHK 107
BTB_POZ_KCNB2 cd18412
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-152 1.20e-22

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily B member 2 (KCNB2); KCNB2, also called voltage-gated potassium channel subunit Kv2.2, mediates transmembrane potassium transport in excitable membranes, primarily in the brain and smooth muscle cells. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. KCNB2 contributes to the delayed-rectifier voltage-gated potassium current in cortical pyramidal neurons and smooth muscle cells. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNB2 is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349719 [Multi-domain]  Cd Length: 127  Bit Score: 93.92  E-value: 1.20e-22
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGTRLAWLADPDgggrpeTDGGGVGSSGSSGGGGCEFFFDRHPGVFAYVLNYYRTGK 114
Cdd:cd18412  16 SRRVKINVGGLNHEVLWRTLDRLPRTRLGKLRDCN------THESLLEVCDDYNLNENEYFFDRHPGAFTSILNFYRTGK 89
                        90       100       110
                ....*....|....*....|....*....|....*...
gi 66774206 115 LHCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHR 152
Cdd:cd18412  90 LHMMEEMCALSFGQELDYWGIDEIYLESCCQARYHQKK 127
BTB_POZ_KCNB1 cd18411
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-148 1.15e-21

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily B member 1 (KCNB1); KCNB1, also called delayed rectifier potassium channel 1 (DRK1) or voltage-gated potassium channel subunit Kv2.1, mediates transmembrane potassium transport in excitable membranes, primarily in the brain, but also in the pancreas and cardiovascular system. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. KCNB1 is involved in the regulation of the action potential (AP) repolarization, duration and frequency of repetitive AP firing in neurons, muscle cells and endocrine cells and plays a role in homeostatic attenuation of electrical excitability throughout the brain. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNB1 is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349718 [Multi-domain]  Cd Length: 117  Bit Score: 90.45  E-value: 1.15e-21
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGTRLAWLADPDgggrpeTDGGGVGSSGSSGGGGCEFFFDRHPGVFAYVLNYYRTGK 114
Cdd:cd18411   9 SRRVKLNVGGLAHEVLWRTLDRLPRTRLGKLRDCN------THESLMEICDDYNLEENEYFFDRHPGAFTSILNFYRTGK 82
                        90       100       110
                ....*....|....*....|....*....|....
gi 66774206 115 LHCPADVCGPLFEEELTFWGIDETDVEPCCWMTY 148
Cdd:cd18411  83 LHMMEEMCALSFSQELDYWGIDEIYLESCCQARY 116
BTB_POZ_Shal-like cd18420
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-152 8.89e-21

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Drosophila melanogaster potassium voltage-gated channel protein Shal and similar proteins; Drosophila melanogaster Shal, also called Shaker cognate l or Shal2, is a transient potassium current (I(A)) channel, which is required for maintaining excitability during repetitive firing and normal locomotion in Drosophila. It may play a role in the nervous system and in the regulation of beating frequency in pacemaker cells. Shal mediates the voltage-dependent potassium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. Shal is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349727 [Multi-domain]  Cd Length: 139  Bit Score: 88.75  E-value: 8.89e-21
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTRLawladpdggGRPETDGGGVGSSGssggggcEFFFDRHPGVFAYVLNYYRTGKL 115
Cdd:cd18420  36 EKLIINVSGRRFETWRNTLEKYPDTLL---------GSNEREFFYDEETK-------EYFFDRDPDIFRHILNYYRTGKL 99
                        90       100       110
                ....*....|....*....|....*....|....*..
gi 66774206 116 HCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHR 152
Cdd:cd18420 100 HYPKHECLTAYDEELAFFGIMPDIIGDCCYEDYRDRK 136
BTB_POZ_KCND2 cd18418
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-152 1.22e-20

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily D member 2 (KCND2); KCND2, also called voltage-gated potassium channel subunit Kv4.2, is a major pore-forming subunit in somatodendritic subthreshold A-type potassium current I(SA) channels. It mediates transmembrane potassium transport in excitable membranes, primarily in the brain. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCND2 is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other Kv4/KCND alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif. It is modulated by cytoplasmic KChIPs/KCNIPs (Kv-channel interacting proteins), which are small calcium binding proteins with EF-hand-like domains.


Pssm-ID: 349725 [Multi-domain]  Cd Length: 103  Bit Score: 87.32  E-value: 1.22e-20
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAwLADPDGGGRPETDgggvgssgssggggcEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18418   2 IVLNVSGTRFQTWRNTLERYPDTLLG-SSERDFFYHEETQ---------------EYFFDRDPDIFRHILNFYRTGKLHY 65
                        90       100       110
                ....*....|....*....|....*....|....*
gi 66774206 118 PADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHR 152
Cdd:cd18418  66 PRHECISAYDEELAFFGIIPEIIGDCCYEEYKDRR 100
BTB_POZ_KCND3 cd18419
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-152 2.51e-20

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily D member 3 (KCND3); KCND3, also called voltage-gated potassium channel subunit Kv4.3, is a pore-forming subunit of voltage-gated rapidly inactivating A-type potassium channels. Mutations in KCND3 cause spinocerebellar ataxia. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCND3 is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other Kv4/KCND alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif. It is modulated by cytoplasmic KChIPs/KCNIPs (Kv-channel interacting proteins), which are small calcium binding proteins with EF-hand-like domains.


Pssm-ID: 349726 [Multi-domain]  Cd Length: 138  Bit Score: 87.34  E-value: 2.51e-20
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTRLawladpdggGRPETDGGGVGSSGssggggcEFFFDRHPGVFAYVLNYYRTGKL 115
Cdd:cd18419  35 ELIVLNVSGRRFQTWRTTLERYPDTLL---------GSTEKEFFFNEDTK-------EYFFDRDPEVFRCVLNFYRTGKL 98
                        90       100       110
                ....*....|....*....|....*....|....*..
gi 66774206 116 HCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHR 152
Cdd:cd18419  99 HYPRYECISAYDEELAFYGILPEIIGDCCYEEYKDRK 135
BTB_POZ_KCNS1 cd18426
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-151 4.23e-20

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily S member 1 (KCNS1); KCNS1, also called delayed-rectifier K(+) channel alpha subunit 1 or voltage-gated potassium channel subunit Kv9.1, is a modulatory alpha subunit of voltage-gated potassium channel that mediates neuropathic pain following nerve injury. It can form functional heterotetrameric channels with KCNB1 (also known as Kv2.1) and KCNB2 (also known as Kv2.2), and further modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1 and KCNB2. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNS1 is a regulatory alpha subunit that cannot form a functional homo-tetrameric channel. It forms hetero-tetrameric channels (with other functional alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349733 [Multi-domain]  Cd Length: 106  Bit Score: 85.71  E-value: 4.23e-20
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLADPDgggrpeTDGGGVGSSGSSGGGGCEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18426   1 ININVGGLKRRLSSSTLSKFPDTRLGRLLSCD------SEESILQICDDYDVSAKEFYFDRNPGLFPYVLHFYQTGKLHI 74
                        90       100       110
                ....*....|....*....|....*....|....
gi 66774206 118 PADVCGPLFEEELTFWGIDETDVEPCCwmTYRQH 151
Cdd:cd18426  75 MEELCVFSFSQEIEYWGINEFFLDSCC--SYRYH 106
BTB_POZ_KCND1 cd18417
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
13-152 1.12e-19

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily D member 1 (KCND1); KCND1, also called voltage-gated potassium channel subunit Kv4.1, is a pore-forming subunit of voltage-gated rapidly inactivating A-type potassium channels. It may contribute to I (To) current in heart and I (Sa) current in neurons. Its properties are modulated by interactions with other alpha subunits and with regulatory subunits. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCND1 is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other Kv4/KCND alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif. It is modulated by cytoplasmic KChIPs/KCNIPs (Kv-channel interacting proteins), which are small calcium binding proteins with EF-hand-like domains.


Pssm-ID: 349724 [Multi-domain]  Cd Length: 138  Bit Score: 85.77  E-value: 1.12e-19
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  13 RKSGNKPPSKTclkeemaKGEASEKIIINVGGTRHETYRSTLRTLPGTRLawladpdggGRPETDGGGVGSSGssggggc 92
Cdd:cd18417  19 KKPMPKPPSDK-------KRRNDEILVVNVSGRRFQTWKNTLDRYPDTLL---------GSSEKEFFYNEDTQ------- 75
                        90       100       110       120       130       140
                ....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  93 EFFFDRHPGVFAYVLNYYRTGKLHCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQHR 152
Cdd:cd18417  76 EYFFDRDPEMFRHILNFYRTGRLHYPRHECIQAFDEELSFYGIIPEIIGDCCLEEYRDRK 135
BTB_POZ_KCNV1 cd18424
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-148 2.60e-18

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily V member 1 (KCNV1); KCNV1, also called neuronal potassium channel alpha subunit HNKA or voltage-gated potassium channel subunit Kv8.1, is a new neuronal voltage-gated potassium channel alpha subunit with specific inhibitory properties towards Shab and Shaw channels. It modulates KCNB1 (also known as Kv2.1) and KCNB2 (also known as Kv2.2) channel activity by shifting the threshold for inactivation to more negative values and by slowing the rate of inactivation. It can also down-regulate the channel activity of KCNB1, KCNB2, KCNC4 (also known as Kv3.4) and KCND1 (also known as Kv4.1), possibly by trapping them in intracellular membranes. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNV1 is a regulatory alpha subunit that cannot form a functional homo-tetrameric channel. It forms hetero-tetrameric channels (with other functional alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349731  Cd Length: 109  Bit Score: 80.63  E-value: 2.60e-18
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLAdpdGGGRPETdgggVGSSGSSGGGGCEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18424   1 FTINVGGSRFVLSQQVLSSHPETRLGKLA---VSVRDSV----LELCDDANFVDNEYFFDRSSQAFKYIMNYYKTGHLHV 73
                        90       100       110
                ....*....|....*....|....*....|.
gi 66774206 118 PADVCGPLFEEELTFWGIDETDVEPCCWMTY 148
Cdd:cd18424  74 MEELCAISFLQEIEYWGIDELSIDSCCRERY 104
BTB_POZ_Kv9_KCNS cd18384
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-151 1.37e-17

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in KCNS/Kv9 subfamily of potassium voltage-gated channels; Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. The potassium voltage-gated channel subfamily Kv9, also known as subfamily S, includes KCNS1 (Kv9.1), KCNS2 (Kv9.2) and KCNS3 (Kv9.3). They are regulatory alpha subunits that cannot form functional homo-tetrameric channels. Both KCNS1 and KCNS2 are delayed-rectifier K(+) channel alpha subunits that can form functional heterotetrameric channels with KCNB1 (also known as Kv2.1) and KCNB2 (also known as Kv2.2), and further modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1 and KCNB2. KCNS3 is a delayed-rectifier K(+) channel alpha subunit linked to tissue oxygenation responses. It can form functional heterotetrameric channels with KCNB1, and further modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1.


Pssm-ID: 349692  Cd Length: 106  Bit Score: 78.72  E-value: 1.37e-17
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWL--ADPDGGGRPETDGGGVGSSgssggggcEFFFDRHPGVFAYVLNYYRTGKL 115
Cdd:cd18384   1 IRINVGGFRRRLSASALLRFPGTRLGRLlaCHSEEAILELCDDYDVAAR--------EFYFDRNPGFFLYVLHFYRTGKL 72
                        90       100       110
                ....*....|....*....|....*....|....*.
gi 66774206 116 HCPADVCGPLFEEELTFWGIDETDVEPCCwmTYRQH 151
Cdd:cd18384  73 HVMDELCVFSFSQEIEYWGINEFFLDSCC--SYRYH 106
BTB_POZ_KCNS2 cd18427
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
37-149 2.03e-17

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily S member 2 (KCNS2); KCNS2, also called delayed-rectifier K(+) channel alpha subunit 2 or voltage-gated potassium channel subunit Kv9.2, is a modulatory alpha subunit of voltage-gated potassium channel that can form functional heterotetrameric channels with KCNB1 (also known as Kv2.1) and KCNB2 (also known as Kv2.2), and further modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1 and KCNB2. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNS2 is a regulatory alpha subunit that cannot form a functional homo-tetrameric channel. It forms hetero-tetrameric channels (with other functional alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349734  Cd Length: 107  Bit Score: 77.97  E-value: 2.03e-17
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  37 KIIINVGGTRHETYRSTLRTLPGTRLAWLAdpdgggRPETDGGGVGSSGSSGGGGCEFFFDRHPGVFAYVLNYYRTGKLH 116
Cdd:cd18427   1 EISINVGGFKKRLRSHTLLRFPETRLGRLL------SCRSKESILELCDDYDDTKNEFYFDRNPELFPYVLHFYNTGKLH 74
                        90       100       110
                ....*....|....*....|....*....|...
gi 66774206 117 CPADVCGPLFEEELTFWGIDETDVEPCCWMTYR 149
Cdd:cd18427  75 VMGELCVFSFSQEIEYWGINEFFIDSCCSYSYH 107
BTB_POZ_Kv6_KCNG cd18382
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-150 5.06e-17

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in KCNG/Kv6 subfamily of potassium voltage-gated channels; Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. The potassium voltage-gated channel subfamily Kv6, also known as subfamily G, includes KCNG1 (Kv6.1), KCNG2 (Kv6.2 or KCNF2), KCNG3 (Kv6.3) and KCNG4 (Kv6.4), which are regulatory alpha subunits and do not form functional channels on their own. KCNG1 can form functional heterotetrameric channels with KCNB1 (also known as Kv2.1), and further modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1. KCNG2, also called cardiac potassium channel subunit, can form functional heterodimeric channels with KCNB1, and further modulates channel activity by shifting the threshold and the half-maximal activation to more negative values. KCNG3, also called voltage-gated potassium channel subunit Kv10.1, is an electrically silent modulatory subunit that can form functional heterotetrameric channels with KCNB1, and further promotes a reduction in the rate of activation and inactivation of the delayed rectifier voltage-gated potassium channel KCNB1. KCNG4 is a silent voltage-gated potassium (KvS) channel subunit that can form functional heterotetrameric channels with KCNB1, and further modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1.


Pssm-ID: 349691 [Multi-domain]  Cd Length: 109  Bit Score: 77.09  E-value: 5.06e-17
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLAdpdgGGRPETDGGGVGSSGSSGGGgcEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18382   1 VIINVGGARYSLPWSTLDRFPLTRLSRLK----ACRSEDDILRVCDDYDVERN--EFFFDRSPEAFGVILLFLRAGKLRL 74
                        90       100       110
                ....*....|....*....|....*....|...
gi 66774206 118 PADVCGPLFEEELTFWGIDETDVEPCCWMTYRQ 150
Cdd:cd18382  75 LREMCALSFQEELAYWGIEEAHLERCCKRRLLR 107
BTB_POZ_Kv_KCTD cd18187
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-133 7.26e-17

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in voltage-gated potassium (Kv) channels and potassium channel tetramerization domain-containing (KCTD) proteins; This family includes two protein groups: voltage-gated potassium (Kv) channels and potassium channel tetramerization domain-containing (KCTD) proteins. Kv channels are membrane proteins with fundamental physiological roles. They are responsible for a variety of electrical phenomena, such as the repolarization of the action potential, spike frequency adaptation, synaptic repolarization, and smooth muscle contraction. KCTD proteins play crucial roles in a variety of fundamental biological processes, such as protein ubiquitination and degradation, suppression of proliferation or transcription, cytoskeleton regulation, tetramerization and gating of ion channels, and others. All family members contain the BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization.


Pssm-ID: 349498  Cd Length: 83  Bit Score: 75.59  E-value: 7.26e-17
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTrlaWLADPDGGGRPETDGGGVGssgssggggcEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18187   1 VVLNVSGTRFVTNRQTLTRHPDT---LLGRMFKPGREFTFPNETG----------EYFIDRDPTVFRTILNYYRTGKLNC 67
                        90
                ....*....|....*.
gi 66774206 118 PADVCGPLFEEELTFW 133
Cdd:cd18187  68 PDGISIPDLREECDFY 83
BTB_POZ_KCNS3 cd18428
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-144 1.65e-16

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily S member 3 (KCNS3); KCNS3, also called delayed-rectifier K(+) channel alpha subunit 3 or voltage-gated potassium channel subunit Kv9.3, is an alpha subunit of voltage-gated potassium channel linked to tissue oxygenation responses. It can form functional heterotetrameric channels with KCNB1 (also known as Kv2.1), and further modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNS3 is a regulatory alpha subunit that cannot form a functional homo-tetrameric channel. It forms hetero-tetrameric channels (with other functional alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349735  Cd Length: 108  Bit Score: 75.64  E-value: 1.65e-16
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTRLAWLADPDgggrpeTDGGGVGSSGSSGGGGCEFFFDRHPGVFAYVLNYYRTGKL 115
Cdd:cd18428   1 ELINLNVGGFKQSVDQSTLLRFPHTRLGKLLNCH------SEEAILELCDDYSVADKEYYFDRNPSLFRYVLNFYYTGKL 74
                        90       100
                ....*....|....*....|....*....
gi 66774206 116 HCPADVCGPLFEEELTFWGIDETDVEPCC 144
Cdd:cd18428  75 HVMEELCVFSFCQEIEYWGINELFIDSCC 103
BTB_POZ_KCNG1_2 cd18421
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-150 2.01e-15

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily G members, KCNG1 and KCNG2; KCNG1, also called voltage-gated potassium channel subunit Kv6.1 or kH2, functions as a regulatory alpha-subunit of voltage-gated potassium channel that can form functional heterotetrameric channels with KCNB1 (also known as Kv2.1), and further modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1. KCNG2, also called cardiac potassium channel subunit or voltage-gated potassium channel subunit Kv6.2, is a new gamma-subunit of voltage-gated potassium channels that can form functional heterodimeric channels with KCNB1, and further modulates channel activity by shifting the threshold and the half-maximal activation to more negative values. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNG1 and KCNG2 are regulatory alpha subunits and do not form homomultimers. They form heteromultimers (with other alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349728 [Multi-domain]  Cd Length: 114  Bit Score: 72.48  E-value: 2.01e-15
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLadpdgggRPETDGGGVGSSGSSGGGGC-EFFFDRHPGVFAYVLNYYRTGKLH 116
Cdd:cd18421   6 VIINVGGIKYRIPWTTLEEFPLTRLGQL-------KSCNNFDEIMDICDDYDVTCnEFFFDRNPCAFRTILTFLRAGKLR 78
                        90       100       110
                ....*....|....*....|....*....|....
gi 66774206 117 CPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQ 150
Cdd:cd18421  79 LLREMCALSFQEELLYWGIEEENLEWCCRRRLLQ 112
Potassium_chann pfam11404
Potassium voltage-gated channel; Fast inactivation of voltage-dependant potassium channels ...
1-29 2.16e-14

Potassium voltage-gated channel; Fast inactivation of voltage-dependant potassium channels occurs by a 'ball-and-chain'-type mechanism. It controls membrane excitability and signal propagation in central neurons. Inactivation is regulated by protein phosphorylation where phosphorylation of serine residues leads to a reduction of the fast inactivation.


Pssm-ID: 431870  Cd Length: 29  Bit Score: 67.16  E-value: 2.16e-14
                          10        20
                  ....*....|....*....|....*....
gi 66774206     1 MISSVCVSSYRGRKSGNKPPSKTCLKEEM 29
Cdd:pfam11404   1 MISSVCVSSFRGRKSGNKSPSKSCLDEDM 29
BTB_POZ_Kv5_KCNF1 cd18381
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-144 3.18e-14

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in KCNF/Kv5 subfamily of potassium voltage-gated channels; Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. The potassium voltage-gated channel subfamily Kv5, also known as subfamily F, only contains KCNF1 (also known as Kv5.1 or kH1), which functions as a regulatory alpha-subunit of voltage-gated potassium channel that when coassembled with Kv2.1 can modulate gating in a physiologically relevant manner. It forms hetero-tetrameric channels (with other alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349690  Cd Length: 116  Bit Score: 69.40  E-value: 3.18e-14
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGGrpetdgggvgssGSSGGGGC--------EFFFDRHPGVFAYVLNY 109
Cdd:cd18381   3 IVVNVGGVRQVLYGDVLNRYPETRLAELLNCLSGG------------YDAIFSLCddydpgkrEFYFDRDPDAFKCIIEV 70
                        90       100       110
                ....*....|....*....|....*....|....*
gi 66774206 110 YRTGKLHCPADVCGPLFEEELTFWGIDETDVEPCC 144
Cdd:cd18381  71 YYYGEIHMKKGICPICFKNEMDFWRVDLDFLDECC 105
BTB_POZ_KCTD-like cd18316
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-120 3.65e-13

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing proteins; The potassium channel tetramerization domain (KCTD) family proteins contain the BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD proteins play crucial roles in a variety of fundamental biological processes, such as protein ubiquitination and degradation, suppression of proliferation or transcription, cytoskeleton regulation, tetramerization and gating of ion channels and others. Some KCTD proteins are involved in protein ubiquitination as part of the CRL (Cullin RING Ligase) E3 ligases. Some others show Cullin-independent functions including binding and regulation of GABA (gamma-aminobutyric acid) receptors (KCTD8, KCTD12 and KCTD16) and inhibition of AP-2 function (KCTD15). KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349625  Cd Length: 83  Bit Score: 65.27  E-value: 3.65e-13
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGGRPETDGggvgssgssggggcEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18316   1 VKLNVGGTLFTTSRSTLLKDPDSLLAALFSGRWPLPRDEDG--------------SIFIDRDPELFRHILNFLRTGKLPL 66

                ...
gi 66774206 118 PAD 120
Cdd:cd18316  67 PSD 69
BTB_POZ_KCNG3 cd18422
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-144 4.11e-13

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily G member 3 (KCNG3); KCNG3, also called voltage-gated potassium channel subunit Kv6.3 or voltage-gated potassium channel subunit Kv10.1, is an electrically silent modulatory subunit that can form functional heterotetrameric channels with KCNB1 (also known as Kv2.1), and further promotes a reduction in the rate of activation and inactivation of the delayed rectifier voltage-gated potassium channel KCNB1. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNG3 is a regulatory alpha subunit that cannot form a functional homo-tetrameric channel. It forms hetero-tetrameric channels (with other functional alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349729  Cd Length: 111  Bit Score: 66.04  E-value: 4.11e-13
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLAdpdgGGRPETDGGGVGSSGSSGGGgcEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18422   1 VTLNVGGTRYSFSREVIKDFPLRRVSRLH----GCLSEQDVLEVCDDYDRERN--EYFFDRHSEAFGFIMLYVKYGKLRF 74
                        90       100
                ....*....|....*....|....*..
gi 66774206 118 PADVCGPLFEEELTFWGIDETDVEPCC 144
Cdd:cd18422  75 VPQMCELSFYNEMIYWGLERSHLEYCC 101
BTB_POZ_KCNG4 cd18423
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-144 4.96e-13

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily G member 4 (KCNG4); KCNG4, also called voltage-gated potassium channel subunit Kv6.4, is a silent voltage-gated potassium (KvS) channel subunit that can form functional heterotetrameric channels with KCNB1 (also known as Kv2.1), and further modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNG4 is a regulatory alpha subunit that cannot form a functional homo-tetrameric channel. It forms hetero-tetrameric channels (with other functional alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349730 [Multi-domain]  Cd Length: 112  Bit Score: 65.61  E-value: 4.96e-13
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTRLAWLA---------------DPDGGgrpetdgggvgssgssggggcEFFFDRHP 100
Cdd:cd18423   2 REIIINVGGIKYLMPWSTLDEFPLTRLGKLKfcssyeeivqicddyDEDTN---------------------EFFFDRNP 60
                        90       100       110       120
                ....*....|....*....|....*....|....*....|....
gi 66774206 101 GVFAYVLNYYRTGKLHCPADVCGPLFEEELTFWGIDETDVEPCC 144
Cdd:cd18423  61 CAFRMIVSFLAAGKLRLLREMCALSFQEELTYWGIEEANLERCC 104
BTB smart00225
Broad-Complex, Tramtrack and Bric a brac; Domain in Broad-Complex, Tramtrack and Bric a brac. ...
38-151 1.92e-12

Broad-Complex, Tramtrack and Bric a brac; Domain in Broad-Complex, Tramtrack and Bric a brac. Also known as POZ (poxvirus and zinc finger) domain. Known to be a protein-protein interaction motif found at the N-termini of several C2H2-type transcription factors as well as Shaw-type potassium channels. Known structure reveals a tightly intertwined dimer formed via interactions between N-terminal strand and helix structures. However in a subset of BTB/POZ domains, these two secondary structures appear to be missing. Be aware SMART predicts BTB/POZ domains without the beta1- and alpha1-secondary structures.


Pssm-ID: 197585 [Multi-domain]  Cd Length: 97  Bit Score: 63.48  E-value: 1.92e-12
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206     38 IIINVGGTRHETYRSTLRTLPGTRLAWLAdpdgGGRPETDGGgvgssgssggggCEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:smart00225   2 VTLVVGGKKFHAHKAVLAAHSPYFKALFS----SDFKESDKS------------EIYLDDVSPEDFRALLNFLYTGKLDL 65
                           90       100       110
                   ....*....|....*....|....*....|....
gi 66774206    118 PADvCGPLFEEELTFWGIDEtDVEPCCWMTYRQH 151
Cdd:smart00225  66 PEE-NVEELLELADYLQIPG-LVELCEEFLLKLL 97
BTB_POZ_KCNA7 cd18408
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-137 5.11e-11

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily A member 7 (KCNA7); KCNA7, also called voltage-gated potassium channel subunit Kv1.7, mediates transmembrane potassium transport in excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. KCNA7 plays an important role in the repolarization of cell membranes. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNA7 is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other Kv1/KCNA alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349715  Cd Length: 115  Bit Score: 59.94  E-value: 5.11e-11
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTrlaWLADPDGGGRPETDGGGvgssgssggggcEFFFDRHPGVFAYVLNYYRT-GK 114
Cdd:cd18408   6 ERVVLNVAGLRFETRARTLGRFPDT---LLGDPARRGRFYDDRRR------------EYFFDRHRPSFDAVLYYYQSgGR 70
                        90       100
                ....*....|....*....|...
gi 66774206 115 LHCPADVCGPLFEEELTFWGIDE 137
Cdd:cd18408  71 LRRPAHVPLDVFLEEVAFYGLGA 93
BTB_POZ_KCNV2 cd18425
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
40-150 1.37e-10

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily V member 2 (KCNV2); KCNV2, also called voltage-gated potassium channel subunit Kv8.2, is a modulatory voltage-gated potassium channel alpha subunit that modulates channel activity by shifting the threshold and the half-maximal activation to more negative values. KCNV2 is essential for visual function and cone survival. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNV2 is a regulatory alpha subunit that cannot form a functional homo-tetrameric channel. It forms hetero-tetrameric channels (with other functional alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349732  Cd Length: 108  Bit Score: 58.62  E-value: 1.37e-10
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  40 INVGGTRHETYRSTLRTLPGTRLAWLADPDGGGR---------PETDgggvgssgssggggcEFFFDRHPGVFAYVLNYY 110
Cdd:cd18425   3 INVGGTSYQISYRVAASYPKTRIGRLATYTDRSRkldlcddynVQND---------------EYFFDRDPAVFHHIYNFY 67
                        90       100       110       120
                ....*....|....*....|....*....|....*....|
gi 66774206 111 RTGKLHCPADVCGPLFEEELTFWGIDETDVEPCCWMTYRQ 150
Cdd:cd18425  68 RTGVLWVKDELCPRNFLEEINYWGVRIKNTPRCCRISFEE 107
BTB_POZ_Kv1_KCNA cd18377
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-133 3.63e-10

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in KCNA/Kv1 subfamily of Shaker-type voltage-dependent potassium channels; Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. The potassium voltage-gated channel subfamily Kv1, also known as subfamily A, contains eight alpha subunit members, Kv1.1 (KCNA1), Kv1.2 (KCNA2), Kv1.3 (KCNA3), Kv1.4 (KCNA4), Kv1.5 (KCNA5), Kv1.6 (KCNA6), Kv1.7 (KCNA7), and Kv1.8 (KCNA10), which are orthologs of the Shaker gene in Drosophila. They are delayed rectifiers except for Kv1.4 (KCNA4), which is an A-type potassium channel. Delayed rectifiers are slow opening and closing voltage-gated potassium channels. Because of their delayed activation kinetics, they play an important role in controlling action potential duration. A-type channels are fast/rapidly inactivating potassium channels. Kv1/KCNA subfamily alpha subunits form functional homo- or hetero-tetrameric channels (with other Kv1/KCNA alpha subunits) through their BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349686  Cd Length: 85  Bit Score: 56.53  E-value: 3.63e-10
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTrlaWLADPDGGGR---PETDgggvgssgssggggcEFFFDRHPGVFAYVLNYYRT 112
Cdd:cd18377   1 ERVVINVSGLRFETQLKTLAQFPNT---LLGDPNKRMRffdPLRN---------------EYFFDRNRPSFDAILYYYQS 62
                        90       100
                ....*....|....*....|..
gi 66774206 113 -GKLHCPADVCGPLFEEELTFW 133
Cdd:cd18377  63 gGRLRRPVNVPLDIFLEEIRFY 84
Ion_trans_2 pfam07885
Ion channel; This family includes the two membrane helix type ion channels found in bacteria.
392-473 4.49e-09

Ion channel; This family includes the two membrane helix type ion channels found in bacteria.


Pssm-ID: 462301 [Multi-domain]  Cd Length: 78  Bit Score: 53.43  E-value: 4.49e-09
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206   392 VLIFATMIYYAErigarpsDPRGNDHTDfknipiGFWWAVVTMTTLGYGDMYPKTWSGMLVGALCALAGVLTIAMPVPVI 471
Cdd:pfam07885   6 VLIFGTVYYLLE-------EGWEWSFLD------ALYFSFVTLTTVGYGDIVPLTDAGRLFTIFYILIGIPLFAIFLAVL 72

                  ..
gi 66774206   472 VN 473
Cdd:pfam07885  73 GR 74
BTB_POZ_KCNRG cd18375
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-120 1.47e-08

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel regulatory protein (KCNRG); KCNRG, also called potassium channel regulator or protein CLLD4, is an endoplasmic reticulum (ER)-associated tumor suppressor that regulates Kv1 family potassium channel proteins by retaining a fraction of the channels in endomembranes. It contains a BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization.


Pssm-ID: 349684  Cd Length: 97  Bit Score: 52.42  E-value: 1.47e-08
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTRLAWLADpdgGGRPETDGGGVgssgssggggcEFFFDRHPGVFAYVLNYYRTGKL 115
Cdd:cd18375   1 ELVTLNVGGKKFTTRPSTLRRFPDSRLARMLD---GKDQDFKVVNG-----------QFFVDRDGSLFSYILDYLRTGQL 66

                ....*
gi 66774206 116 HCPAD 120
Cdd:cd18375  67 TLPTE 71
BTB_POZ_Shaker-like cd18410
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-141 6.17e-08

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Drosophila melanogaster potassium voltage-gated channel protein Shaker and similar proteins; Shaker, also termed protein minisleep, represents a family of putative potassium channel proteins in the nervous system of Drosophila. It is a voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. Shaker plays a role in the regulation of sleep need or efficiency. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. Shaker is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349717  Cd Length: 100  Bit Score: 50.70  E-value: 6.17e-08
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTrlaWLADPDGGGR---PETDgggvgssgssggggcEFFFDRHPGVFAYVLNYYRT 112
Cdd:cd18410   1 ERVVINVSGLRFETQLKTLNQFPDT---LLGDPQRRNRyydPLRN---------------EYFFDRNRPSFDAILYYYQS 62
                        90       100       110
                ....*....|....*....|....*....|
gi 66774206 113 G-KLHCPADVCGPLFEEELTFWGIDETDVE 141
Cdd:cd18410  63 GgRLRRPVNVPLDVFSEEIKFYELGENAFE 92
BTB_POZ_KCNA2_KCNA3 cd18403
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-141 8.73e-08

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily A members 2 (KCNA2) and 3 (KCNA3); KCNA2 is also called NGK1, voltage-gated K(+) channel HuKIV, voltage-gated potassium channel HBK5, or voltage-gated potassium channel subunit Kv1.2. KCNA3 is also called HGK5, HLK3, HPCN3, voltage-gated K(+) channel HuKIII, or voltage-gated potassium channel subunit Kv1.3. KCNA2 and KCNA3 mediate transmembrane potassium transport in excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. KCNA2 primarily functions in the brain and the central nervous system, but also in the cardiovascular system. It prevents aberrant action potential firing and regulates neuronal output. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNA2 and KCNA3 are alpha subunits that form functional homo- or hetero-tetrameric channels (with other Kv1/KCNA alpha subunits) through their BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349711  Cd Length: 99  Bit Score: 50.35  E-value: 8.73e-08
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTrlaWLADPDGGGR---PETDgggvgssgssggggcEFFFDRHPGVFAYVLNYYRT 112
Cdd:cd18403   1 ERVVINISGLRFETQLKTLAQFPET---LLGDPKKRMRyfdPLRN---------------EYFFDRNRPSFDAILYYYQS 62
                        90       100       110
                ....*....|....*....|....*....|
gi 66774206 113 -GKLHCPADVCGPLFEEELTFWGIDETDVE 141
Cdd:cd18403  63 gGRLRRPVNVPLDIFSEEIRFYELGEEAME 92
BTB_POZ_KCNA4 cd18405
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-137 1.32e-07

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily A member 4 (KCNA4); KCNA4 is also called HPCN2, or voltage-gated K(+) channel HuKII, voltage-gated potassium channel HBK4, voltage-gated potassium channel HK1, or voltage-gated potassium channel subunit Kv1.4. It mediates transmembrane potassium transport in excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNA4 is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other Kv1/KCNA alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349712  Cd Length: 97  Bit Score: 49.99  E-value: 1.32e-07
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTrlaWLADPDGGGRpetdgggvgssgSSGGGGCEFFFDRHPGVFAYVLNYYRT-GK 114
Cdd:cd18405   1 ERVVINVSGLRFETQLKTLAQFPET---LLGDPEKRMR------------YFDPLRNEYFFDRNRPSFDAILYYYQSgGR 65
                        90       100
                ....*....|....*....|...
gi 66774206 115 LHCPADVCGPLFEEELTFWGIDE 137
Cdd:cd18405  66 LKRPVNVPFDIFSEEVKFYELGE 88
BTB_POZ_KCNA10 cd18409
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-133 1.67e-07

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily A member 10 (KCNA10); KCNA10, also called voltage-gated potassium channel subunit Kv1.8, is a cyclic nucleotide-gated, voltage-activated potassium channel that mediates transmembrane potassium transport in excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. KCNA10 is expressed in proximal tubular cells, glomerular and vascular endothelial cells, as well as in vascular smooth muscle cells. It may facilitate proximal tubular sodium absorption by stabilizing cell membrane voltage. The channel activity is up-regulated by cAMP. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNA10 is an alpha subunit that forms functional homotetrameric channels through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349716  Cd Length: 87  Bit Score: 49.07  E-value: 1.67e-07
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTRLawladpdggGRPETDGGGVGSSGSsggggcEFFFDRHPGVFAYVLNYYRT-GK 114
Cdd:cd18409   1 QKVIINIAGLRFETQLKTLDQFPDTLL---------GDPEKRMKYFDSMRN------EYFFDRNRPSFDGILYYYQSgGK 65
                        90
                ....*....|....*....
gi 66774206 115 LHCPADVCGPLFEEELTFW 133
Cdd:cd18409  66 IRRPANVPLDVFADEIIFY 84
BTB_POZ_KCNA5 cd18406
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-141 3.81e-07

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily A member 5 (KCNA5); KCNA5, also called HPCN1, voltage-gated potassium channel HK2, or voltage-gated potassium channel subunit Kv1.5, mediates transmembrane potassium transport in excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. KCNA5 may play a role in regulating the secretion of insulin in normal pancreatic islets. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNA5 is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other Kv1/KCNA alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349713  Cd Length: 97  Bit Score: 48.71  E-value: 3.81e-07
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTrlaWLADPDGGGR---PETDgggvgssgssggggcEFFFDRHPGVFAYVLNYYRT 112
Cdd:cd18406   1 ERVIINIAGLRFETQLGTLNQFPDT---LLGDPDKRMRyfdPLRN---------------EYFFDRNRPSFDGILYFYQS 62
                        90       100       110
                ....*....|....*....|....*....|
gi 66774206 113 -GKLHCPADVCGPLFEEELTFWGIDETDVE 141
Cdd:cd18406  63 gGKIRRPVNVSIDVFADEIRFYQLGEEAME 92
BTB_POZ_KCNA1 cd18402
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
33-137 6.61e-07

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium voltage-gated channel subfamily A member 1 (KCNA1); KCNA1 is also called voltage-gated K(+) channel HuKI, voltage-gated potassium channel HBK1, or voltage-gated potassium channel subunit Kv1.1. It mediates transmembrane potassium transport in excitable membranes, primarily in the brain and the central nervous system, but also in the kidney. It is involved in the regulation of the membrane potential and nerve signaling, and prevents neuronal hyperexcitability. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a tetrameric potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. Voltage-gated potassium (Kv) channels are composed of alpha subunits, which form the actual conductance pore, and cytoplasmic beta subunits, which are auxiliary proteins that associate with alpha subunits to modulate the activity of the Kv channel. KCNA1 is an alpha subunit that forms functional homo- or hetero-tetrameric channels (with other Kv1/KCNA alpha subunits) through its BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif.


Pssm-ID: 349710  Cd Length: 98  Bit Score: 47.72  E-value: 6.61e-07
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  33 EASEKIIINVGGTRHETYRSTLRTLPGTRLawladpdggGRPETDGGGVGSSGSsggggcEFFFDRHPGVFAYVLNYYRT 112
Cdd:cd18402   6 ECCERVVINIAGLRFETQLKTLAQFPNTLL---------GNPKKRMRYFDPLRN------EYFFDRNRPSFDAILYYYQS 70
                        90       100
                ....*....|....*....|....*.
gi 66774206 113 -GKLHCPADVCGPLFEEELTFWGIDE 137
Cdd:cd18402  71 gGRLRRPVNVPLDMFSEEIKFYELGE 96
BTB_POZ_KCTD3-like cd18363
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-135 1.34e-06

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 3 (KCTD3) and SH3KBP1-binding protein 1 (SHKBP1); The group of KCTD proteins includes KCTD3 and SHKBP1. KCTD3, also called renal carcinoma antigen NY-REN-45, is a BTB/POZ domain-containing protein that is an accessory subunit of potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 3 (HCN3), upregulating its cell-surface expression and current density without affecting its voltage dependence and kinetics. SHKBP1, also called SETA-binding protein 1, interacts with cathepsin B and participates in tumor necrosis factor (TNF)-induced apoptosis in ovarian cancer cells. It can promote epidermal growth factor receptor (EGFR) signaling by interrupting c-Cbl-CIN85 complex and inhibiting EGFR degradation. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349672  Cd Length: 86  Bit Score: 46.59  E-value: 1.34e-06
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGT--------RLAWLADPDGGgrpetdgggvgssgssggggceFFFDRHPGVFAYV 106
Cdd:cd18363   1 GDIINLNVGGKRFSTSRQTLTWIPDSfftsllsgRISSLKDETGA----------------------IFIDRDPKLFSII 58
                        90       100       110
                ....*....|....*....|....*....|
gi 66774206 107 LNYYRTGKLH-CPADVCGPLFEEEltFWGI 135
Cdd:cd18363  59 LNYLRTKEIDlRNVDISSLRHEAE--FYGI 86
BTB_POZ_SHKBP1 cd18393
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-135 1.01e-05

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in SH3KBP1-binding protein 1 (SHKBP1); SHKBP1, also called SETA-binding protein 1, interacts with cathepsin B and participates in tumor necrosis factor (TNF)-induced apoptosis in ovarian cancer cells. It can promote epidermal growth factor receptor (EGFR) signaling by interrupting c-Cbl-CIN85 complex and inhibiting EGFR degradation. It contains a BTB/POZ domain, also known as tetramerization (T1) domain, a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349701  Cd Length: 103  Bit Score: 44.54  E-value: 1.01e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGT--------RLAWLADPDGGgrpetdgggvgssgssggggceFFFDRHPGVFAYVL 107
Cdd:cd18393   2 EVIHLNVGGKRFSTSRQTLTWIPDSffssllsgRISTLKDETGA----------------------IFIDRDPTVFAPIL 59
                        90       100
                ....*....|....*....|....*...
gi 66774206 108 NYYRTGKLHcPADVCGPLFEEELTFWGI 135
Cdd:cd18393  60 NFLRTKELD-PRGIHVSLLLHEAQFYGI 86
BTB_POZ_KCTD7 cd18366
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-128 1.56e-05

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 7 (KCTD7); KCTD7 is a BTB/POZ domain-containing protein that has an impact on K+ fluxes, neurotransmitter synthesis, and neuronal function. It functions as a regulator of potassium conductance in neurons, and is involved in the control of excitability of cortical neurons. Mutations in KCTD7 may cause progressive myoclonus epilepsy (PME). The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349675  Cd Length: 92  Bit Score: 43.83  E-value: 1.56e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTRLAwlADPDGGGRPETDGGGVgssgssggggceFFFDRHPGVFAYVLNYYRTGKL 115
Cdd:cd18366   4 EVVPLNVGGMHFTTRLSTLRKYEDSMLA--AMFSGRHHIPKDSEGR------------YFIDRDGSYFGYILNFLRDGDL 69
                        90
                ....*....|...
gi 66774206 116 HcPADVCGPLFEE 128
Cdd:cd18366  70 P-PRERARAVYKE 81
BTB_POZ_KCTD14 cd18371
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-142 3.16e-05

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 14 (KCTD14); KCTD14 is a BTB/POZ domain-containing protein with unknown biological function. KCTD proteins play crucial roles in a variety of fundamental biological processes, such as protein ubiquitination and degradation, suppression of proliferation or transcription, cytoskeleton regulation, tetramerization and gating of ion channels and others. Some KCTD proteins are involved in protein ubiquitination as part of the CRL (Cullin RING Ligase) E3 ligases. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349680  Cd Length: 99  Bit Score: 43.20  E-value: 3.16e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGTRLAWLAdpDGGGRPETDGGGvgssgssggggcEFFFDRHPGVFAYVLNYYRTGK 114
Cdd:cd18371   1 SQVVSLNVGGHIYTTTLSTLRKFPGSKLAELF--NGQPKLRTDSEG------------RYFIDRDGTYFRYILEYLRTNQ 66
                        90       100
                ....*....|....*....|....*...
gi 66774206 115 LhcPADVCGPLFEEELTFwgidetDVEP 142
Cdd:cd18371  67 V--PTQHIQEVYKEALFY------DIEP 86
BTB_POZ_KCTD6_like cd18365
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-120 8.01e-05

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing proteins, KCTD6, KCTD21 and similar proteins; KCTD6, also called KCASH3 (KCTD containing, Cullin3 adaptor, suppressor of Hedgehog 3), is a substrate-specific adaptor of cullin-3, effectively regulating protein levels of the muscle small ankyrin-1 isoform 5 (sAnk1.5). KCTD21, also called KCASH2, functions as a substrate-specific adaptor of cullin-3, promoting the ubiquitination and degradation of histone deacetylase HDAC1, thereby inhibiting the deacetylation-mediated transcriptional activation of the Hedgehog effectors Gli1 and Gli2. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349674 [Multi-domain]  Cd Length: 94  Bit Score: 42.00  E-value: 8.01e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLAdpdGGGRPETDGGGVGssgssggggceFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18365   3 VNLNVGGVHYTTTLATLTRFPDSMLGAMF---SGSMPTTRDDQGN-----------YFIDRDGTLFRYILNFLRSSQLSL 68

                ...
gi 66774206 118 PAD 120
Cdd:cd18365  69 PED 71
BTB_POZ_KCTD2-like cd18362
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
40-115 1.36e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing proteins KCTD2, KCTD5, and KCTD17, and similar proteins; This subfamily includes potassium channel tetramerization domain-containing proteins KCTD2, KCTD5, and KCTD17, all of which function as adaptors of Cullin3 based ubiquitin E3 ubiquitin ligases. KCTD2 suppresses gliomagenesis by destabilizing c-Myc. KCTD5 is a negative regulator of the AKT pathway, a key signaling cascade frequently deregulated in cancer. KCTD5 does not impact the operation of Kv4.2, Kv3.4, Kv2.1, or Kv1.2 channels. KCTD17 polyubiquitylates trichoplein, a protein involved in ciliogenesis down-regulation. It is a positive regulator of ciliogenesis, playing a crucial role in the initial steps of axoneme extension. A missense mutation in KCTD17 causes autosomal dominant myoclonus-dystonia (M-D). The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization. KCTD5 and KCTD17 BTB domains form pentamer structures.


Pssm-ID: 349671 [Multi-domain]  Cd Length: 85  Bit Score: 40.81  E-value: 1.36e-04
                        10        20        30        40        50        60        70
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 66774206  40 INVGGTRHETYRSTLRTLPGTRLAWLA--DPD-GGGRPETDGggvgssgssggggceFFFDRHPGVFAYVLNYYRTGKL 115
Cdd:cd18362   4 LNVGGTYFLTTRTTLCRDPKSFLCRLCqeDPDlPSDKDETGA---------------YLIDRDPTYFGPILNYLRHGKL 67
BTB_POZ_KCTD3 cd18392
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-135 1.37e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 3 (KCTD3); KCTD3, also called renal carcinoma antigen NY-REN-45, is a BTB/POZ domain-containing protein that is an accessory subunit of potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 3 (HCN3), upregulating its cell-surface expression and current density without affecting its voltage dependence and kinetics. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349700  Cd Length: 88  Bit Score: 41.01  E-value: 1.37e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGT--------RLAWLADPDGGgrpetdgggvgssgssggggceFFFDRHPGVFAYVL 107
Cdd:cd18392   2 EIIQLNVGGTRFSTSRQTLMWIPDSffssllsgRISSLKDETGA----------------------IFIDRDPTAFVPIL 59
                        90       100
                ....*....|....*....|....*...
gi 66774206 108 NYYRTGKLHcPADVCGPLFEEELTFWGI 135
Cdd:cd18392  60 NFLRTKELD-LRGVNINVLRHEAEFYGI 86
BTB_POZ_KCTD1-like cd18361
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
40-137 1.49e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing proteins, KCTD1 and KCTD15; This subfamily of KCTD proteins includes KCTD1 and KCTD15. KCTD1 is a nuclear BTB/POZ domain-containing protein that acts as a transcriptional repressor and mediates protein-protein interactions through a BTB domain. It represses the transcriptional activity of AP-2 family members, including TFAP2A, TFAP2B and TFAP2C. It also functions as a novel inhibitor of the Wnt signaling pathway. Mutations in KCTD1 cause scalp-ear-nipple (SEN) syndrome. KCTD15 is a BTB/POZ domain-containing protein that plays a role in the regulation of neural crest (NC) formation and other steps in embryonic development. It inhibits AP2 transcriptional activity by interaction with its activation domain. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization. The KCTD1 BTB domains form pentamers.


Pssm-ID: 349670  Cd Length: 94  Bit Score: 41.21  E-value: 1.49e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  40 INVGGTrheTYRSTLRTL---PGTRLAWLADpdgGGRPetdgggvgssGSSGGGGCEFFFDRHPGVFAYVLNYYRTGKLH 116
Cdd:cd18361   3 IDVGGH---IYTSSLETLtkyPESRLGKLFN---GSIP----------IVLDSLKQHYFIDRDGKMFRHILNFLRTSKLL 66
                        90       100
                ....*....|....*....|..
gi 66774206 117 CPADVCG-PLFEEELTFWGIDE 137
Cdd:cd18361  67 LPDDFTEfDLLYEEARYYELQP 88
BTB_POZ_KCTD8-like cd18367
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
40-118 1.71e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing proteins, KCTD8, KCTD12, KCTD16 and similar proteins; This subfamily of KCTD proteins includes KCTD8, KCTD12 (also called predominantly fetal expressed T1 domain/Pfetin), and KCTD16. They act as auxiliary subunits of GABAB receptors associated with mood disorders. KCTD8 interacts as a tetramer with GABRB1 and GABRB2. KCTD12 regulates agonist potency and kinetics of GABAB receptor signaling. It promotes tumorigenesis by facilitating CDC25B/CDK1/Aurora A-dependent G2/M transition. KCTD16 interacts with amyloid beta precursor protein (APP), a type I transmembrane protein involved in a variety of cellular processes such as cell adhesion, and axon guidance. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349676  Cd Length: 100  Bit Score: 41.12  E-value: 1.71e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  40 INVGGTRHETYRSTLRTLPGTRLAWLADP--------DGGGRpetdgggvgssgssggggceFFFDRHPGVFAYVLNYYR 111
Cdd:cd18367   7 LNVGGQVYTTSLSTLIKDPDSLLGRMFSGknrqelarDSKGR--------------------YFLDRDGVLFRYILDYLR 66

                ....*..
gi 66774206 112 TGKLHCP 118
Cdd:cd18367  67 NQKLVLP 73
BTB_POZ_KCTD5 cd18390
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
32-135 1.89e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 5 (KCTD5); KCTD5 is a BTB/POZ domain-containing protein that functions as a substrate adaptor for cullin3 based ubiquitin E3 ligases. It is a negative regulator of the AKT pathway, a key signaling cascade frequently deregulated in cancer. KCTD5 does not impact the operation of Kv4.2, Kv3.4, Kv2.1, or Kv1.2 channels. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization. KCTD5 forms pentamers mediated by its BTB domain.


Pssm-ID: 349698 [Multi-domain]  Cd Length: 112  Bit Score: 41.13  E-value: 1.89e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  32 GEASEKIIINVGGTRHETYRSTLRTLPGTRLAWL--ADPD-GGGRPETDGggvgssgssggggceFFFDRHPGVFAYVLN 108
Cdd:cd18390   1 GGVSKWVRLNVGGTYFLTTRQTLCRDPKSFLYRLcqADPDlDSDKDETGA---------------YLIDRDPTYFGPVLN 65
                        90       100
                ....*....|....*....|....*..
gi 66774206 109 YYRTGKLHCPADVCGPLFEEELTFWGI 135
Cdd:cd18390  66 YLRHGKLVINKDLAEEGVLEEAEFYNI 92
BTB_POZ_KCTD6 cd18394
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
35-136 2.01e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 6 (KCTD6); KCTD6, also called KCTD containing, Cullin3 adaptor, suppressor of Hedgehog 3 (KCASH3), is a BTB/POZ domain-containing protein that functions as a substrate-specific adaptor of cullin-3, regulating protein levels of the muscle small ankyrin-1 isoform 5 (sAnk1.5) as well as suppressing histone deacetylase and Hedgehog activity in medulloblastoma. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349702 [Multi-domain]  Cd Length: 104  Bit Score: 41.09  E-value: 2.01e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  35 SEKIIINVGGTRHETYRSTLRTLPGTRLAWLAdpdGGGRPETDGGGVgssgssggggcEFFFDRHPGVFAYVLNYYRTGK 114
Cdd:cd18394   2 TDPVTLNVGGHLYTTSLSTLTRYPDSMLGAMF---RGDFPTARDSQG-----------NYFIDRDGPLFRYILNFLRTSE 67
                        90       100
                ....*....|....*....|...
gi 66774206 115 LHCPADVCG-PLFEEELTFWGID 136
Cdd:cd18394  68 LTLPVDFKEfDLLRKEADFYQIE 90
BTB_POZ_FIP2-like cd18376
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-128 2.66e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Arabidopsis thaliana FH protein interacting protein FIP2 and similar proteins; FIP2 may act as a substrate-specific adaptor of an E3 ubiquitin-protein ligase complex (CUL3-RBX1-BTB) which mediates the ubiquitination and subsequent proteasomal degradation of target proteins. It contains a BTB/POZ domain, also known as tetramerization (T1) domain, which is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization.


Pssm-ID: 349685  Cd Length: 89  Bit Score: 40.31  E-value: 2.66e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAwlADPDGGGRPETDGGGVgssgssggggceFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18376   1 VKLNVGGQKFTTTLDTLTKDPDSMLA--AMFSGRHSLKKDEDGS------------YFIDRDGTHFRHILNYLRDGEVKI 66
                        90
                ....*....|....
gi 66774206 118 PAD---VCGPLFEE 128
Cdd:cd18376  67 PTEdrsVLKELLEE 80
BTB_POZ_KCTD21 cd18395
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-120 6.55e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 21 (KCTD21); KCTD21, also calledz KCTD containing, Cullin3 adaptor, suppressor of Hedgehog 2 (KCASH2), is a BTB/POZ domain-containing protein that functions as a substrate-specific adaptor of cullin-3, promoting the ubiquitination and degradation of histone deacetylase HDAC1, thereby inhibiting the deacetylation-mediated transcriptional activation of the Hedgehog effectors Gli1 and Gli2. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349703 [Multi-domain]  Cd Length: 98  Bit Score: 39.54  E-value: 6.55e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTRLAWLADpdgGGRPETDGGGVgssgssggggcEFFFDRHPGVFAYVLNYYRTGKL 115
Cdd:cd18395   1 DPITLNVGGKLYTTSLATLTRYPDSMLGAMFS---GKFPTKKDSQG-----------NCFIDRDGKIFRYILNFLRTSHL 66

                ....*
gi 66774206 116 HCPAD 120
Cdd:cd18395  67 DLPED 71
BTB_POZ_KCTD9 cd18368
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-137 7.01e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 9 (KCTD9); KCTD9 is a BTB/POZ domain-containing protein that contributes to liver injury through NK cell activation during hepatitis B virus-induced acute-on-chronic liver failure. It functions as a substrate-specific adaptor of a BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex, which mediates the ubiquitination of target proteins, leading to their degradation by the proteasome. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization. The KCTD9 BTB domain forms a pentameric structure.


Pssm-ID: 349677 [Multi-domain]  Cd Length: 100  Bit Score: 39.17  E-value: 7.01e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTL-RTLPGTRLAWLADPDGGGRPETDGGGVgssgssggggceFFFDRHPGVFAYVLNYYRTGKLH 116
Cdd:cd18368   3 IKLNVGGRIFTTTRSTLvKKEPDSMLARMFSDDSTWPSSRDENGA------------YLIDRSPEYFEPILNYLRHGQLI 70
                        90       100
                ....*....|....*....|...
gi 66774206 117 CPADVC--GPLfeEELTFWGIDE 137
Cdd:cd18368  71 LNDGLNplGVL--EEAKFFGIQS 91
BTB_POZ_KCTD11 cd18370
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-118 7.49e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein KCTD11; KCTD11 may function as an antagonist of the Hedgehog pathway of cell proliferation and differentiation by affecting the nuclear transfer of transcription factor GLI1, thus maintaining cerebellar granule cells in the undifferentiated state. It is a probable substrate-specific adapter for a BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex towards HDAC1. It contains a BTB/POZ domain; in some cases the domain may be truncated. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization. Variants of the human/mouse KCTD11 appear to contain truncated BTB/POZ domains.


Pssm-ID: 349679  Cd Length: 88  Bit Score: 38.83  E-value: 7.49e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAwlADPDGGGRPETDGGGVGSSgssggggcEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18370   1 VTLNVGGTLYSTTLETLTRFPDSMLG--AMFRAGTPIPPNLNMQGGG--------HYFIDRDGKAFRHILNFLRLGRLDL 70

                .
gi 66774206 118 P 118
Cdd:cd18370  71 P 71
BTB_POZ_KCTD4 cd18364
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
38-120 9.36e-04

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 4 (KCTD4); KCTD4 is a BTB/POZ domain-containing protein with an unknown biological function. KCTD proteins play crucial roles in a variety of fundamental biological processes, such as protein ubiquitination and degradation, suppression of proliferation or transcription, cytoskeleton regulation, tetramerization and gating of ion channels and others. Some KCTD proteins are involved in protein ubiquitination as part of the CRL (Cullin RING Ligase) E3 ligases. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349673 [Multi-domain]  Cd Length: 86  Bit Score: 38.51  E-value: 9.36e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  38 IIINVGGTRHETYRSTLRTLPGTRLAWLADpdGGGRPETDGGGvgssgssggggcEFFFDRHPGVFAYVLNYYRTGKLHC 117
Cdd:cd18364   2 VTLNVGGYLYITQRQTLTKYPDSFLEGMVN--GKIQCTVDADG------------NYFIDRDGLLFRHVLNFLRNGELLL 67

                ...
gi 66774206 118 PAD 120
Cdd:cd18364  68 PEG 70
PRK10537 PRK10537
voltage-gated potassium channel protein;
422-475 1.00e-03

voltage-gated potassium channel protein;


Pssm-ID: 236711 [Multi-domain]  Cd Length: 393  Bit Score: 41.93  E-value: 1.00e-03
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 66774206  422 NIPIGFWWAVVTMTTLGYGDMYPKTWSGMLVGALCALAGVLTIAMPV-----PVIVNNF 475
Cdd:PRK10537 168 SLSTAFYFSIVTMSTVGYGDIVPVSESARLFTISVIILGITVFATSIsaifgPVIRGNL 226
BTB_POZ_KCTD8 cd18396
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
36-118 1.63e-03

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein KCTD8; KCTD8, a BTB/POZ domain-containing protein, is an auxiliary subunit of GABA-B receptors that determine the pharmacology and kinetics of the receptor response. It interacts as a tetramer with GABRB1 and GABRB2. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization.


Pssm-ID: 349704 [Multi-domain]  Cd Length: 103  Bit Score: 38.25  E-value: 1.63e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  36 EKIIINVGGTRHETYRSTLRTLPGTRLAWLADPDGGGRPETDGGGvgssgssggggcEFFFDRHPGVFAYVLNYYRTGKL 115
Cdd:cd18396   4 EVVELNVGGQVYVTKHSTLLSVPDSTLASMFSRRAARELPRDNRG------------RFFIDRDGFLFRYVLDYLRDKQL 71

                ...
gi 66774206 116 HCP 118
Cdd:cd18396  72 ALP 74
BTB_POZ_KCTD2 cd18389
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
40-135 4.16e-03

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 2 (KCTD2); KCTD2 is a BTB/POZ domain-containing protein that functions as an adaptor of Cullin3 E3 ubiquitin ligase. It suppresses gliomagenesis by destabilizing c-Myc. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization. KCTD5 and KCTD17 BTB domain, highly similar to KCTD2, form pentamer structures.


Pssm-ID: 349697 [Multi-domain]  Cd Length: 105  Bit Score: 37.27  E-value: 4.16e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  40 INVGGTRHETYRSTLRTLPGTRLAWLA--DPD-GGGRPETDGggvgssgssggggceFFFDRHPGVFAYVLNYYRTGKLH 116
Cdd:cd18389   5 LNVGGTYFVSTKQTLCRDPKSFLYRLCqeDPDlDSDKDETGA---------------YLIDRDPTYFGPILNYLRHGKLI 69
                        90
                ....*....|....*....
gi 66774206 117 CPADVCGPLFEEELTFWGI 135
Cdd:cd18389  70 INKELAEEGVLEEAEFYNI 88
BTB_POZ_KCTD1 cd18387
BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in ...
34-153 7.59e-03

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in potassium channel tetramerization domain-containing protein 1 (KCTD1); KCTD1 is a nuclear BTB/POZ domain-containing protein that acts as a transcriptional repressor and mediates protein-protein interactions through a BTB domain. It represses the transcriptional activity of AP-2 family members, including TFAP2A, TFAP2B and TFAP2C to various extent. It also functions as a novel inhibitor of the Wnt signaling pathway. Mutations in KCTD1 cause scalp-ear-nipple (SEN) syndrome. The BTB/POZ domain, also known as tetramerization (T1) domain, is a versatile protein-protein interaction motif that facilitates homodimerization or heterodimerization. KCTD family BTB domains can adopt a wide range of oligomerization geometries, including homodimerization, tetramerization, and pentamerization. The KCTD1 BTB domains form pentamers.


Pssm-ID: 349695  Cd Length: 105  Bit Score: 36.52  E-value: 7.59e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 66774206  34 ASEKIIINVGGTRHETYRSTLRTLPGTRLAWLADpdgGGRPetdgggvgssGSSGGGGCEFFFDRHPGVFAYVLNYYRTG 113
Cdd:cd18387   1 SNAPVHIDVGGHMYTSSLATLTKYPESRIGRLFD---GTEP----------IVLDSLKQHYFIDRDGQMFRYILNFLRTS 67
                        90       100       110       120
                ....*....|....*....|....*....|....*....|.
gi 66774206 114 KLHCPADVCG-PLFEEELTFWGIDETDVEPCCWmtyRQHRD 153
Cdd:cd18387  68 KLLIPDDFKDySLLYEEAKYFQLQPMLLELERW---KQDRE 105
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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