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Conserved domains on  [gi|2462519084|ref|XP_054221787|]
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calcium-activated potassium channel subunit alpha-1 isoform X10 [Homo sapiens]

Protein Classification

calcium-activated potassium channel( domain architecture ID 11998341)

calcium-activated potassium channel such as calcium-activated potassium channel subunit alpha-1 (also called BK channel or BKCA alpha) that is activated by both membrane depolarization or increase in cytosolic Ca(2+) that mediates export of K(+)

SCOP:  4000034
TCDB:  1.A.1.3

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
BK_channel_a pfam03493
Calcium-activated BK potassium channel alpha subunit;
590-677 3.37e-31

Calcium-activated BK potassium channel alpha subunit;


:

Pssm-ID: 460947  Cd Length: 90  Bit Score: 117.65  E-value: 3.37e-31
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  590 DDAICLAELKLGFIAQSCLAQGLSTMLANLFSMRSFIKIEEDT--WQKYYLEGVSNEMYTEYLSSAFVGLSFPTVCELCF 667
Cdd:pfam03493    1 DHVICIEELKLGLLAQSCLCPGLSTLITNLLHTRSGEEGQKSSeqWQKEYLRGSGNEIYTIKLSDAFVGKTFTEAARLAY 80
                           90
                   ....*....|
gi 2462519084  668 VKLKLLMIAI 677
Cdd:pfam03493   81 KKLGVILIGI 90
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
223-440 3.04e-26

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: 108.51  E-value: 3.04e-26
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  223 VLVVLVFALSIGALVIYFIDSSnpiescQNFYKDFTLQIDMAFNVFFLLYFGLRFIAANDKLWFWLEVNSVVDFFTVPPV 302
Cdd:pfam00520    6 LFILLLILLNTIFLALETYFQP------EEPLTTVLEILDYVFTGIFTLEMLLKIIAAGFKKRYFRSPWNILDFVVVLPS 79
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  303 FVSVYLNRSWLG--------LRFLRALRLIQFSEILQ-FLNILKTSnSIKLVNLLSIFISTWLTAA--------GFIHLV 365
Cdd:pfam00520   80 LISLVLSSVGSLsglrvlrlLRLLRLLRLIRRLEGLRtLVNSLIRS-LKSLGNLLLLLLLFLFIFAiigyqlfgGKLKTW 158
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  366 ENSGDPWENFQNnqaltYWECVYLLMVTMSTVGYGDVYAKTTLGR-------LFMVFFILGGLAMFASYVPEIIELIGNR 438
Cdd:pfam00520  159 ENPDNGRTNFDN-----FPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFIILGGFLLLNLFIAVIIDNFQEL 233

                   ..
gi 2462519084  439 KK 440
Cdd:pfam00520  234 TE 235
TrkA super family cl33955
Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion ...
387-567 7.78e-05

Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion transport and metabolism, Signal transduction mechanisms];


The actual alignment was detected with superfamily member COG0569:

Pssm-ID: 440335 [Multi-domain]  Cd Length: 296  Bit Score: 46.21  E-value: 7.78e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  387 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFAS----YVPEIIELIGNRKKYGGSysaVSGRKHIVVCGHitl 462
Cdd:COG0569     30 ITLTTVTTLGGGLLDPVTLVAAIFLIGVVIIPLGYTLITFgdavLFGGLLEALRRRRMERGI---KKLKMHVIIIGA--- 103
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  463 esvSNF---LKDFLHKDRDDVNVeivflhnISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkyc 539
Cdd:COG0569    104 ---GRVgrsLARELEEEGHDVVV-------IDKDPERVERLAEEDVLV--IVGDATDEEVLEEAGIEDADAVIAATG--- 168
                          170       180
                   ....*....|....*....|....*...
gi 2462519084  540 adpdaEDASNIMRVISIKNYHPKiRIIT 567
Cdd:COG0569    169 -----DDEANILACLLAKELGVP-RIIA 190
 
Name Accession Description Interval E-value
BK_channel_a pfam03493
Calcium-activated BK potassium channel alpha subunit;
590-677 3.37e-31

Calcium-activated BK potassium channel alpha subunit;


Pssm-ID: 460947  Cd Length: 90  Bit Score: 117.65  E-value: 3.37e-31
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  590 DDAICLAELKLGFIAQSCLAQGLSTMLANLFSMRSFIKIEEDT--WQKYYLEGVSNEMYTEYLSSAFVGLSFPTVCELCF 667
Cdd:pfam03493    1 DHVICIEELKLGLLAQSCLCPGLSTLITNLLHTRSGEEGQKSSeqWQKEYLRGSGNEIYTIKLSDAFVGKTFTEAARLAY 80
                           90
                   ....*....|
gi 2462519084  668 VKLKLLMIAI 677
Cdd:pfam03493   81 KKLGVILIGI 90
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
223-440 3.04e-26

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: 108.51  E-value: 3.04e-26
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  223 VLVVLVFALSIGALVIYFIDSSnpiescQNFYKDFTLQIDMAFNVFFLLYFGLRFIAANDKLWFWLEVNSVVDFFTVPPV 302
Cdd:pfam00520    6 LFILLLILLNTIFLALETYFQP------EEPLTTVLEILDYVFTGIFTLEMLLKIIAAGFKKRYFRSPWNILDFVVVLPS 79
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  303 FVSVYLNRSWLG--------LRFLRALRLIQFSEILQ-FLNILKTSnSIKLVNLLSIFISTWLTAA--------GFIHLV 365
Cdd:pfam00520   80 LISLVLSSVGSLsglrvlrlLRLLRLLRLIRRLEGLRtLVNSLIRS-LKSLGNLLLLLLLFLFIFAiigyqlfgGKLKTW 158
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  366 ENSGDPWENFQNnqaltYWECVYLLMVTMSTVGYGDVYAKTTLGR-------LFMVFFILGGLAMFASYVPEIIELIGNR 438
Cdd:pfam00520  159 ENPDNGRTNFDN-----FPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFIILGGFLLLNLFIAVIIDNFQEL 233

                   ..
gi 2462519084  439 KK 440
Cdd:pfam00520  234 TE 235
PRK10537 PRK10537
voltage-gated potassium channel protein;
387-459 7.99e-11

voltage-gated potassium channel protein;


Pssm-ID: 236711 [Multi-domain]  Cd Length: 393  Bit Score: 65.43  E-value: 7.99e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  387 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASYVPEII-ELIGNRKKyggsySAVSGRK-------HIVVCG 458
Cdd:PRK10537   173 FYFSIVTMSTVGYGDIVPVSESARLFTISVIILGITVFATSISAIFgPVIRGNLK-----RLVKGRIshmhrkdHFIICG 247

                   .
gi 2462519084  459 H 459
Cdd:PRK10537   248 H 248
TrkA COG0569
Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion ...
387-567 7.78e-05

Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion transport and metabolism, Signal transduction mechanisms];


Pssm-ID: 440335 [Multi-domain]  Cd Length: 296  Bit Score: 46.21  E-value: 7.78e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  387 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFAS----YVPEIIELIGNRKKYGGSysaVSGRKHIVVCGHitl 462
Cdd:COG0569     30 ITLTTVTTLGGGLLDPVTLVAAIFLIGVVIIPLGYTLITFgdavLFGGLLEALRRRRMERGI---KKLKMHVIIIGA--- 103
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  463 esvSNF---LKDFLHKDRDDVNVeivflhnISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkyc 539
Cdd:COG0569    104 ---GRVgrsLARELEEEGHDVVV-------IDKDPERVERLAEEDVLV--IVGDATDEEVLEEAGIEDADAVIAATG--- 168
                          170       180
                   ....*....|....*....|....*...
gi 2462519084  540 adpdaEDASNIMRVISIKNYHPKiRIIT 567
Cdd:COG0569    169 -----DDEANILACLLAKELGVP-RIIA 190
TrkA_N pfam02254
TrkA-N domain; This domain is found in a wide variety of proteins. These proteins include ...
490-567 1.37e-03

TrkA-N domain; This domain is found in a wide variety of proteins. These proteins include potassium channels, phosphoesterases, and various other transporters. This domain binds to NAD.


Pssm-ID: 426679 [Multi-domain]  Cd Length: 115  Bit Score: 39.82  E-value: 1.37e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 2462519084  490 ISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkycadpdaEDASNIMRVISIKNYHPKIRIIT 567
Cdd:pfam02254   26 IDKDEERVEELREEGVPV--VVGDATDEEVLEEAGIEEADAVIAATG--------DDEANILIVLLARELNPDKKIIA 93
 
Name Accession Description Interval E-value
BK_channel_a pfam03493
Calcium-activated BK potassium channel alpha subunit;
590-677 3.37e-31

Calcium-activated BK potassium channel alpha subunit;


Pssm-ID: 460947  Cd Length: 90  Bit Score: 117.65  E-value: 3.37e-31
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  590 DDAICLAELKLGFIAQSCLAQGLSTMLANLFSMRSFIKIEEDT--WQKYYLEGVSNEMYTEYLSSAFVGLSFPTVCELCF 667
Cdd:pfam03493    1 DHVICIEELKLGLLAQSCLCPGLSTLITNLLHTRSGEEGQKSSeqWQKEYLRGSGNEIYTIKLSDAFVGKTFTEAARLAY 80
                           90
                   ....*....|
gi 2462519084  668 VKLKLLMIAI 677
Cdd:pfam03493   81 KKLGVILIGI 90
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
223-440 3.04e-26

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: 108.51  E-value: 3.04e-26
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  223 VLVVLVFALSIGALVIYFIDSSnpiescQNFYKDFTLQIDMAFNVFFLLYFGLRFIAANDKLWFWLEVNSVVDFFTVPPV 302
Cdd:pfam00520    6 LFILLLILLNTIFLALETYFQP------EEPLTTVLEILDYVFTGIFTLEMLLKIIAAGFKKRYFRSPWNILDFVVVLPS 79
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  303 FVSVYLNRSWLG--------LRFLRALRLIQFSEILQ-FLNILKTSnSIKLVNLLSIFISTWLTAA--------GFIHLV 365
Cdd:pfam00520   80 LISLVLSSVGSLsglrvlrlLRLLRLLRLIRRLEGLRtLVNSLIRS-LKSLGNLLLLLLLFLFIFAiigyqlfgGKLKTW 158
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  366 ENSGDPWENFQNnqaltYWECVYLLMVTMSTVGYGDVYAKTTLGR-------LFMVFFILGGLAMFASYVPEIIELIGNR 438
Cdd:pfam00520  159 ENPDNGRTNFDN-----FPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFIILGGFLLLNLFIAVIIDNFQEL 233

                   ..
gi 2462519084  439 KK 440
Cdd:pfam00520  234 TE 235
Ion_trans_2 pfam07885
Ion channel; This family includes the two membrane helix type ion channels found in bacteria.
350-435 3.56e-14

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: 68.83  E-value: 3.56e-14
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  350 IFISTWLTAAGFIHLVEnsgDPWENfqnnqalTYWECVYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASYVP 429
Cdd:pfam07885    1 IVLLLVLIFGTVYYLLE---EGWEW-------SFLDALYFSFVTLTTVGYGDIVPLTDAGRLFTIFYILIGIPLFAIFLA 70

                   ....*.
gi 2462519084  430 EIIELI 435
Cdd:pfam07885   71 VLGRFL 76
PRK10537 PRK10537
voltage-gated potassium channel protein;
387-459 7.99e-11

voltage-gated potassium channel protein;


Pssm-ID: 236711 [Multi-domain]  Cd Length: 393  Bit Score: 65.43  E-value: 7.99e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  387 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASYVPEII-ELIGNRKKyggsySAVSGRK-------HIVVCG 458
Cdd:PRK10537   173 FYFSIVTMSTVGYGDIVPVSESARLFTISVIILGITVFATSISAIFgPVIRGNLK-----RLVKGRIshmhrkdHFIICG 247

                   .
gi 2462519084  459 H 459
Cdd:PRK10537   248 H 248
PLN03192 PLN03192
Voltage-dependent potassium channel; Provisional
261-437 1.73e-05

Voltage-dependent potassium channel; Provisional


Pssm-ID: 215625 [Multi-domain]  Cd Length: 823  Bit Score: 49.10  E-value: 1.73e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  261 IDMAFNVFFLLYFGLRFIAANDKL---------------WFWLEVNSVVDFFTVPPVF---VSVYLNRSWLG-LRFLRAL 321
Cdd:PLN03192   101 VDLFFAVDIVLTFFVAYIDPRTQLlvrdrkkiavrylstWFLMDVASTIPFQALAYLItgtVKLNLSYSLLGlLRFWRLR 180
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  322 RLIQFSEILQfLNILKTSNSIKLVNLLSIFISTWLTAAGFIHLVEN----SGDPW-----ENF-QNNQALTYWECVYLLM 391
Cdd:PLN03192   181 RVKQLFTRLE-KDIRFSYFWIRCARLLSVTLFLVHCAGCLYYLIADryphQGKTWigaviPNFrETSLWIRYISAIYWSI 259
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|....*.
gi 2462519084  392 VTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASyvpeiieLIGN 437
Cdd:PLN03192   260 TTMTTVGYGDLHAVNTIEMIFIIFYMLFNLGLTAY-------LIGN 298
TrkA COG0569
Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion ...
387-567 7.78e-05

Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion transport and metabolism, Signal transduction mechanisms];


Pssm-ID: 440335 [Multi-domain]  Cd Length: 296  Bit Score: 46.21  E-value: 7.78e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  387 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFAS----YVPEIIELIGNRKKYGGSysaVSGRKHIVVCGHitl 462
Cdd:COG0569     30 ITLTTVTTLGGGLLDPVTLVAAIFLIGVVIIPLGYTLITFgdavLFGGLLEALRRRRMERGI---KKLKMHVIIIGA--- 103
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462519084  463 esvSNF---LKDFLHKDRDDVNVeivflhnISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkyc 539
Cdd:COG0569    104 ---GRVgrsLARELEEEGHDVVV-------IDKDPERVERLAEEDVLV--IVGDATDEEVLEEAGIEDADAVIAATG--- 168
                          170       180
                   ....*....|....*....|....*...
gi 2462519084  540 adpdaEDASNIMRVISIKNYHPKiRIIT 567
Cdd:COG0569    169 -----DDEANILACLLAKELGVP-RIIA 190
TrkA_N pfam02254
TrkA-N domain; This domain is found in a wide variety of proteins. These proteins include ...
490-567 1.37e-03

TrkA-N domain; This domain is found in a wide variety of proteins. These proteins include potassium channels, phosphoesterases, and various other transporters. This domain binds to NAD.


Pssm-ID: 426679 [Multi-domain]  Cd Length: 115  Bit Score: 39.82  E-value: 1.37e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 2462519084  490 ISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkycadpdaEDASNIMRVISIKNYHPKIRIIT 567
Cdd:pfam02254   26 IDKDEERVEELREEGVPV--VVGDATDEEVLEEAGIEEADAVIAATG--------DDEANILIVLLARELNPDKKIIA 93
 
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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