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Conserved domains on  [gi|767962830|ref|XP_011538086|]
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calcium-activated potassium channel subunit alpha-1 isoform X32 [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 1.60e-30

Calcium-activated BK potassium channel alpha subunit;


:

Pssm-ID: 460947  Cd Length: 90  Bit Score: 114.96  E-value: 1.60e-30
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  590 DDAICLAELKLGFIAQSCLAQGLSTMLANLFSMRSFIKIEEDT--WQKYYLEGVSNEMYTEYLSSAFVGLSFPTVCELCF 667
Cdd:pfam03493   1 DHVICIEELKLGLLAQSCLCPGLSTLITNLLHTRSGEEGQKSSeqWQKEYLRGSGNEIYTIKLSDAFVGKTFTEAARLAY 80
                          90
                  ....*....|
gi 767962830  668 VKLKLLMIAI 677
Cdd:pfam03493  81 KKLGVILIGI 90
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
222-440 2.67e-23

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: 99.26  E-value: 2.67e-23
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  222 RVLVVLVFALSIGALVIYFIDSSNPIESCqnfYKDFTLQIDMAFNVFFLLYFGLRFIAANDKLWFWLEVNSVVDFFTVPP 301
Cdd:pfam00520   2 RYFELFILLLILLNTIFLALETYFQPEEP---LTTVLEILDYVFTGIFTLEMLLKIIAAGFKKRYFRSPWNILDFVVVLP 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  302 VFVSVYLNRSWLG--------LRFLRALRLIQFSEILQ-FLNILKTSnSIKLVNLLSIFISTWLTAA--------GFIHL 364
Cdd:pfam00520  79 SLISLVLSSVGSLsglrvlrlLRLLRLLRLIRRLEGLRtLVNSLIRS-LKSLGNLLLLLLLFLFIFAiigyqlfgGKLKT 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  365 VENSGDPWENFQNnqaltYWECVYLLMVTMSTVGYGDVYAKTTLGR-------LFMVFFILGGLAMFASYVPEIIELIGN 437
Cdd:pfam00520 158 WENPDNGRTNFDN-----FPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFIILGGFLLLNLFIAVIIDNFQE 232

                  ...
gi 767962830  438 RKK 440
Cdd:pfam00520 233 LTE 235
TrkA super family cl33955
Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion ...
387-567 1.10e-04

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: 44.67  E-value: 1.10e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830 387 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFAS----YVPEIIELIGNRKKYGGSysaVSGRKHIVVCGHitl 462
Cdd:COG0569   30 ITLTTVTTLGGGLLDPVTLVAAIFLIGVVIIPLGYTLITFgdavLFGGLLEALRRRRMERGI---KKLKMHVIIIGA--- 103
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830 463 esvSNF---LKDFLHKDRDDVNVeivflhnISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkyc 539
Cdd:COG0569  104 ---GRVgrsLARELEEEGHDVVV-------IDKDPERVERLAEEDVLV--IVGDATDEEVLEEAGIEDADAVIAATG--- 168
                        170       180
                 ....*....|....*....|....*...
gi 767962830 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 1.60e-30

Calcium-activated BK potassium channel alpha subunit;


Pssm-ID: 460947  Cd Length: 90  Bit Score: 114.96  E-value: 1.60e-30
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  590 DDAICLAELKLGFIAQSCLAQGLSTMLANLFSMRSFIKIEEDT--WQKYYLEGVSNEMYTEYLSSAFVGLSFPTVCELCF 667
Cdd:pfam03493   1 DHVICIEELKLGLLAQSCLCPGLSTLITNLLHTRSGEEGQKSSeqWQKEYLRGSGNEIYTIKLSDAFVGKTFTEAARLAY 80
                          90
                  ....*....|
gi 767962830  668 VKLKLLMIAI 677
Cdd:pfam03493  81 KKLGVILIGI 90
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
222-440 2.67e-23

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: 99.26  E-value: 2.67e-23
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  222 RVLVVLVFALSIGALVIYFIDSSNPIESCqnfYKDFTLQIDMAFNVFFLLYFGLRFIAANDKLWFWLEVNSVVDFFTVPP 301
Cdd:pfam00520   2 RYFELFILLLILLNTIFLALETYFQPEEP---LTTVLEILDYVFTGIFTLEMLLKIIAAGFKKRYFRSPWNILDFVVVLP 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  302 VFVSVYLNRSWLG--------LRFLRALRLIQFSEILQ-FLNILKTSnSIKLVNLLSIFISTWLTAA--------GFIHL 364
Cdd:pfam00520  79 SLISLVLSSVGSLsglrvlrlLRLLRLLRLIRRLEGLRtLVNSLIRS-LKSLGNLLLLLLLFLFIFAiigyqlfgGKLKT 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  365 VENSGDPWENFQNnqaltYWECVYLLMVTMSTVGYGDVYAKTTLGR-------LFMVFFILGGLAMFASYVPEIIELIGN 437
Cdd:pfam00520 158 WENPDNGRTNFDN-----FPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFIILGGFLLLNLFIAVIIDNFQE 232

                  ...
gi 767962830  438 RKK 440
Cdd:pfam00520 233 LTE 235
PRK10537 PRK10537
voltage-gated potassium channel protein;
387-459 1.38e-10

voltage-gated potassium channel protein;


Pssm-ID: 236711 [Multi-domain]  Cd Length: 393  Bit Score: 63.89  E-value: 1.38e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830 387 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASYVPEII-ELIGNRKKyggsySAVSGRK-------HIVVCG 458
Cdd:PRK10537 173 FYFSIVTMSTVGYGDIVPVSESARLFTISVIILGITVFATSISAIFgPVIRGNLK-----RLVKGRIshmhrkdHFIICG 247

                 .
gi 767962830 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 1.10e-04

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: 44.67  E-value: 1.10e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830 387 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFAS----YVPEIIELIGNRKKYGGSysaVSGRKHIVVCGHitl 462
Cdd:COG0569   30 ITLTTVTTLGGGLLDPVTLVAAIFLIGVVIIPLGYTLITFgdavLFGGLLEALRRRRMERGI---KKLKMHVIIIGA--- 103
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830 463 esvSNF---LKDFLHKDRDDVNVeivflhnISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkyc 539
Cdd:COG0569  104 ---GRVgrsLARELEEEGHDVVV-------IDKDPERVERLAEEDVLV--IVGDATDEEVLEEAGIEDADAVIAATG--- 168
                        170       180
                 ....*....|....*....|....*...
gi 767962830 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 1.11e-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: 39.43  E-value: 1.11e-03
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 767962830  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 1.60e-30

Calcium-activated BK potassium channel alpha subunit;


Pssm-ID: 460947  Cd Length: 90  Bit Score: 114.96  E-value: 1.60e-30
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  590 DDAICLAELKLGFIAQSCLAQGLSTMLANLFSMRSFIKIEEDT--WQKYYLEGVSNEMYTEYLSSAFVGLSFPTVCELCF 667
Cdd:pfam03493   1 DHVICIEELKLGLLAQSCLCPGLSTLITNLLHTRSGEEGQKSSeqWQKEYLRGSGNEIYTIKLSDAFVGKTFTEAARLAY 80
                          90
                  ....*....|
gi 767962830  668 VKLKLLMIAI 677
Cdd:pfam03493  81 KKLGVILIGI 90
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
222-440 2.67e-23

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: 99.26  E-value: 2.67e-23
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  222 RVLVVLVFALSIGALVIYFIDSSNPIESCqnfYKDFTLQIDMAFNVFFLLYFGLRFIAANDKLWFWLEVNSVVDFFTVPP 301
Cdd:pfam00520   2 RYFELFILLLILLNTIFLALETYFQPEEP---LTTVLEILDYVFTGIFTLEMLLKIIAAGFKKRYFRSPWNILDFVVVLP 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  302 VFVSVYLNRSWLG--------LRFLRALRLIQFSEILQ-FLNILKTSnSIKLVNLLSIFISTWLTAA--------GFIHL 364
Cdd:pfam00520  79 SLISLVLSSVGSLsglrvlrlLRLLRLLRLIRRLEGLRtLVNSLIRS-LKSLGNLLLLLLLFLFIFAiigyqlfgGKLKT 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  365 VENSGDPWENFQNnqaltYWECVYLLMVTMSTVGYGDVYAKTTLGR-------LFMVFFILGGLAMFASYVPEIIELIGN 437
Cdd:pfam00520 158 WENPDNGRTNFDN-----FPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFIILGGFLLLNLFIAVIIDNFQE 232

                  ...
gi 767962830  438 RKK 440
Cdd:pfam00520 233 LTE 235
Ion_trans_2 pfam07885
Ion channel; This family includes the two membrane helix type ion channels found in bacteria.
350-435 6.80e-13

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: 64.60  E-value: 6.80e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830  350 IFISTWLTAAGFIHLVEnsgDPWENfqnnqalTYWECVYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASYVP 429
Cdd:pfam07885   1 IVLLLVLIFGTVYYLLE---EGWEW-------SFLDALYFSFVTLTTVGYGDIVPLTDAGRLFTIFYILIGIPLFAIFLA 70

                  ....*.
gi 767962830  430 EIIELI 435
Cdd:pfam07885  71 VLGRFL 76
PRK10537 PRK10537
voltage-gated potassium channel protein;
387-459 1.38e-10

voltage-gated potassium channel protein;


Pssm-ID: 236711 [Multi-domain]  Cd Length: 393  Bit Score: 63.89  E-value: 1.38e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830 387 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASYVPEII-ELIGNRKKyggsySAVSGRK-------HIVVCG 458
Cdd:PRK10537 173 FYFSIVTMSTVGYGDIVPVSESARLFTISVIILGITVFATSISAIFgPVIRGNLK-----RLVKGRIshmhrkdHFIICG 247

                 .
gi 767962830 459 H 459
Cdd:PRK10537 248 H 248
PLN03192 PLN03192
Voltage-dependent potassium channel; Provisional
261-437 1.08e-05

Voltage-dependent potassium channel; Provisional


Pssm-ID: 215625 [Multi-domain]  Cd Length: 823  Bit Score: 49.10  E-value: 1.08e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830 261 IDMAFNVFFLLYFGLRFIAANDKL---------------WFWLEVNSVVDFFTVPPVF---VSVYLNRSWLG-LRFLRAL 321
Cdd:PLN03192 101 VDLFFAVDIVLTFFVAYIDPRTQLlvrdrkkiavrylstWFLMDVASTIPFQALAYLItgtVKLNLSYSLLGlLRFWRLR 180
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830 322 RLIQFSEILQfLNILKTSNSIKLVNLLSIFISTWLTAAGFIHLVEN----SGDPW-----ENF-QNNQALTYWECVYLLM 391
Cdd:PLN03192 181 RVKQLFTRLE-KDIRFSYFWIRCARLLSVTLFLVHCAGCLYYLIADryphQGKTWigaviPNFrETSLWIRYISAIYWSI 259
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|....*.
gi 767962830 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 1.10e-04

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: 44.67  E-value: 1.10e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830 387 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFAS----YVPEIIELIGNRKKYGGSysaVSGRKHIVVCGHitl 462
Cdd:COG0569   30 ITLTTVTTLGGGLLDPVTLVAAIFLIGVVIIPLGYTLITFgdavLFGGLLEALRRRRMERGI---KKLKMHVIIIGA--- 103
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767962830 463 esvSNF---LKDFLHKDRDDVNVeivflhnISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkyc 539
Cdd:COG0569  104 ---GRVgrsLARELEEEGHDVVV-------IDKDPERVERLAEEDVLV--IVGDATDEEVLEEAGIEDADAVIAATG--- 168
                        170       180
                 ....*....|....*....|....*...
gi 767962830 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 1.11e-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: 39.43  E-value: 1.11e-03
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 767962830  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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