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Conserved domains on  [gi|1018191561|ref|NP_001309761|]
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Calcium-activated potassium channel subunit alpha-1 isoform i [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;
546-633 5.60e-31

Calcium-activated BK potassium channel alpha subunit;


:

Pssm-ID: 460947  Cd Length: 90  Bit Score: 116.88  E-value: 5.60e-31
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  546 DDAICLAELKLGFIAQSCLAQGLSTMLANLFSMRSFIKIEEDT--WQKYYLEGVSNEMYTEYLSSAFVGLSFPTVCELCF 623
Cdd:pfam03493    1 DHVICIEELKLGLLAQSCLCPGLSTLITNLLHTRSGEEGQKSSeqWQKEYLRGSGNEIYTIKLSDAFVGKTFTEAARLAY 80
                           90
                   ....*....|
gi 1018191561  624 VKLKLLMIAI 633
Cdd:pfam03493   81 KKLGVILIGI 90
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
179-396 2.57e-25

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: 105.81  E-value: 2.57e-25
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  179 VLVVLVFALSIGALVIYFIDSSnpiescQNFYKDFTLQIDMAFNVFFLLYFGLRFIAANDKLWFWLEVNSVVDFFTVPPV 258
Cdd:pfam00520    6 LFILLLILLNTIFLALETYFQP------EEPLTTVLEILDYVFTGIFTLEMLLKIIAAGFKKRYFRSPWNILDFVVVLPS 79
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  259 FVSVYLNRSWLG--------LRFLRALRLIQFSEILQ-FLNILKTSnSIKLVNLLSIFISTWLTAA--------GFIHLV 321
Cdd:pfam00520   80 LISLVLSSVGSLsglrvlrlLRLLRLLRLIRRLEGLRtLVNSLIRS-LKSLGNLLLLLLLFLFIFAiigyqlfgGKLKTW 158
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  322 ENSGDPWENFQNnqaltYWECVYLLMVTMSTVGYGDVYAKTTLGR-------LFMVFFILGGLAMFASYVPEIIELIGNR 394
Cdd:pfam00520  159 ENPDNGRTNFDN-----FPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFIILGGFLLLNLFIAVIIDNFQEL 233

                   ..
gi 1018191561  395 KK 396
Cdd:pfam00520  234 TE 235
TrkA super family cl33955
Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion ...
343-523 9.70e-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: 45.83  E-value: 9.70e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  343 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFAS----YVPEIIELIGNRKKYGGSysaVSGRKHIVVCGHitl 418
Cdd:COG0569     30 ITLTTVTTLGGGLLDPVTLVAAIFLIGVVIIPLGYTLITFgdavLFGGLLEALRRRRMERGI---KKLKMHVIIIGA--- 103
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  419 esvSNF---LKDFLHKDRDDVNVeivflhnISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkyc 495
Cdd:COG0569    104 ---GRVgrsLARELEEEGHDVVV-------IDKDPERVERLAEEDVLV--IVGDATDEEVLEEAGIEDADAVIAATG--- 168
                          170       180
                   ....*....|....*....|....*...
gi 1018191561  496 adpdaEDASNIMRVISIKNYHPKiRIIT 523
Cdd:COG0569    169 -----DDEANILACLLAKELGVP-RIIA 190
 
Name Accession Description Interval E-value
BK_channel_a pfam03493
Calcium-activated BK potassium channel alpha subunit;
546-633 5.60e-31

Calcium-activated BK potassium channel alpha subunit;


Pssm-ID: 460947  Cd Length: 90  Bit Score: 116.88  E-value: 5.60e-31
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  546 DDAICLAELKLGFIAQSCLAQGLSTMLANLFSMRSFIKIEEDT--WQKYYLEGVSNEMYTEYLSSAFVGLSFPTVCELCF 623
Cdd:pfam03493    1 DHVICIEELKLGLLAQSCLCPGLSTLITNLLHTRSGEEGQKSSeqWQKEYLRGSGNEIYTIKLSDAFVGKTFTEAARLAY 80
                           90
                   ....*....|
gi 1018191561  624 VKLKLLMIAI 633
Cdd:pfam03493   81 KKLGVILIGI 90
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
179-396 2.57e-25

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: 105.81  E-value: 2.57e-25
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  179 VLVVLVFALSIGALVIYFIDSSnpiescQNFYKDFTLQIDMAFNVFFLLYFGLRFIAANDKLWFWLEVNSVVDFFTVPPV 258
Cdd:pfam00520    6 LFILLLILLNTIFLALETYFQP------EEPLTTVLEILDYVFTGIFTLEMLLKIIAAGFKKRYFRSPWNILDFVVVLPS 79
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  259 FVSVYLNRSWLG--------LRFLRALRLIQFSEILQ-FLNILKTSnSIKLVNLLSIFISTWLTAA--------GFIHLV 321
Cdd:pfam00520   80 LISLVLSSVGSLsglrvlrlLRLLRLLRLIRRLEGLRtLVNSLIRS-LKSLGNLLLLLLLFLFIFAiigyqlfgGKLKTW 158
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  322 ENSGDPWENFQNnqaltYWECVYLLMVTMSTVGYGDVYAKTTLGR-------LFMVFFILGGLAMFASYVPEIIELIGNR 394
Cdd:pfam00520  159 ENPDNGRTNFDN-----FPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFIILGGFLLLNLFIAVIIDNFQEL 233

                   ..
gi 1018191561  395 KK 396
Cdd:pfam00520  234 TE 235
PRK10537 PRK10537
voltage-gated potassium channel protein;
343-415 1.02e-10

voltage-gated potassium channel protein;


Pssm-ID: 236711 [Multi-domain]  Cd Length: 393  Bit Score: 65.04  E-value: 1.02e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  343 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASYVPEII-ELIGNRKKyggsySAVSGRK-------HIVVCG 414
Cdd:PRK10537   173 FYFSIVTMSTVGYGDIVPVSESARLFTISVIILGITVFATSISAIFgPVIRGNLK-----RLVKGRIshmhrkdHFIICG 247

                   .
gi 1018191561  415 H 415
Cdd:PRK10537   248 H 248
TrkA COG0569
Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion ...
343-523 9.70e-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: 45.83  E-value: 9.70e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  343 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFAS----YVPEIIELIGNRKKYGGSysaVSGRKHIVVCGHitl 418
Cdd:COG0569     30 ITLTTVTTLGGGLLDPVTLVAAIFLIGVVIIPLGYTLITFgdavLFGGLLEALRRRRMERGI---KKLKMHVIIIGA--- 103
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  419 esvSNF---LKDFLHKDRDDVNVeivflhnISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkyc 495
Cdd:COG0569    104 ---GRVgrsLARELEEEGHDVVV-------IDKDPERVERLAEEDVLV--IVGDATDEEVLEEAGIEDADAVIAATG--- 168
                          170       180
                   ....*....|....*....|....*...
gi 1018191561  496 adpdaEDASNIMRVISIKNYHPKiRIIT 523
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 ...
446-523 1.54e-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: 1.54e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1018191561  446 ISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkycadpdaEDASNIMRVISIKNYHPKIRIIT 523
Cdd:pfam02254   26 IDKDEERVEELREEGVPV--VVGDATDEEVLEEAGIEEADAVIAATG--------DDEANILIVLLARELNPDKKIIA 93
 
Name Accession Description Interval E-value
BK_channel_a pfam03493
Calcium-activated BK potassium channel alpha subunit;
546-633 5.60e-31

Calcium-activated BK potassium channel alpha subunit;


Pssm-ID: 460947  Cd Length: 90  Bit Score: 116.88  E-value: 5.60e-31
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  546 DDAICLAELKLGFIAQSCLAQGLSTMLANLFSMRSFIKIEEDT--WQKYYLEGVSNEMYTEYLSSAFVGLSFPTVCELCF 623
Cdd:pfam03493    1 DHVICIEELKLGLLAQSCLCPGLSTLITNLLHTRSGEEGQKSSeqWQKEYLRGSGNEIYTIKLSDAFVGKTFTEAARLAY 80
                           90
                   ....*....|
gi 1018191561  624 VKLKLLMIAI 633
Cdd:pfam03493   81 KKLGVILIGI 90
Ion_trans pfam00520
Ion transport protein; This family contains sodium, potassium and calcium ion channels. This ...
179-396 2.57e-25

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: 105.81  E-value: 2.57e-25
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  179 VLVVLVFALSIGALVIYFIDSSnpiescQNFYKDFTLQIDMAFNVFFLLYFGLRFIAANDKLWFWLEVNSVVDFFTVPPV 258
Cdd:pfam00520    6 LFILLLILLNTIFLALETYFQP------EEPLTTVLEILDYVFTGIFTLEMLLKIIAAGFKKRYFRSPWNILDFVVVLPS 79
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  259 FVSVYLNRSWLG--------LRFLRALRLIQFSEILQ-FLNILKTSnSIKLVNLLSIFISTWLTAA--------GFIHLV 321
Cdd:pfam00520   80 LISLVLSSVGSLsglrvlrlLRLLRLLRLIRRLEGLRtLVNSLIRS-LKSLGNLLLLLLLFLFIFAiigyqlfgGKLKTW 158
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  322 ENSGDPWENFQNnqaltYWECVYLLMVTMSTVGYGDVYAKTTLGR-------LFMVFFILGGLAMFASYVPEIIELIGNR 394
Cdd:pfam00520  159 ENPDNGRTNFDN-----FPNAFLWLFQTMTTEGWGDIMYDTIDGKgefwayiYFVSFIILGGFLLLNLFIAVIIDNFQEL 233

                   ..
gi 1018191561  395 KK 396
Cdd:pfam00520  234 TE 235
Ion_trans_2 pfam07885
Ion channel; This family includes the two membrane helix type ion channels found in bacteria.
306-391 8.69e-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: 67.68  E-value: 8.69e-14
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  306 IFISTWLTAAGFIHLVEnsgDPWENfqnnqalTYWECVYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASYVP 385
Cdd:pfam07885    1 IVLLLVLIFGTVYYLLE---EGWEW-------SFLDALYFSFVTLTTVGYGDIVPLTDAGRLFTIFYILIGIPLFAIFLA 70

                   ....*.
gi 1018191561  386 EIIELI 391
Cdd:pfam07885   71 VLGRFL 76
PRK10537 PRK10537
voltage-gated potassium channel protein;
343-415 1.02e-10

voltage-gated potassium channel protein;


Pssm-ID: 236711 [Multi-domain]  Cd Length: 393  Bit Score: 65.04  E-value: 1.02e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  343 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASYVPEII-ELIGNRKKyggsySAVSGRK-------HIVVCG 414
Cdd:PRK10537   173 FYFSIVTMSTVGYGDIVPVSESARLFTISVIILGITVFATSISAIFgPVIRGNLK-----RLVKGRIshmhrkdHFIICG 247

                   .
gi 1018191561  415 H 415
Cdd:PRK10537   248 H 248
PLN03192 PLN03192
Voltage-dependent potassium channel; Provisional
217-393 1.79e-05

Voltage-dependent potassium channel; Provisional


Pssm-ID: 215625 [Multi-domain]  Cd Length: 823  Bit Score: 49.10  E-value: 1.79e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  217 IDMAFNVFFLLYFGLRFIAANDKL---------------WFWLEVNSVVDFFTVPPVF---VSVYLNRSWLG-LRFLRAL 277
Cdd:PLN03192   101 VDLFFAVDIVLTFFVAYIDPRTQLlvrdrkkiavrylstWFLMDVASTIPFQALAYLItgtVKLNLSYSLLGlLRFWRLR 180
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  278 RLIQFSEILQfLNILKTSNSIKLVNLLSIFISTWLTAAGFIHLVEN----SGDPW-----ENF-QNNQALTYWECVYLLM 347
Cdd:PLN03192   181 RVKQLFTRLE-KDIRFSYFWIRCARLLSVTLFLVHCAGCLYYLIADryphQGKTWigaviPNFrETSLWIRYISAIYWSI 259
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|....*.
gi 1018191561  348 VTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFASyvpeiieLIGN 393
Cdd:PLN03192   260 TTMTTVGYGDLHAVNTIEMIFIIFYMLFNLGLTAY-------LIGN 298
TrkA COG0569
Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion ...
343-523 9.70e-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: 45.83  E-value: 9.70e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  343 VYLLMVTMSTVGYGDVYAKTTLGRLFMVFFILGGLAMFAS----YVPEIIELIGNRKKYGGSysaVSGRKHIVVCGHitl 418
Cdd:COG0569     30 ITLTTVTTLGGGLLDPVTLVAAIFLIGVVIIPLGYTLITFgdavLFGGLLEALRRRRMERGI---KKLKMHVIIIGA--- 103
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1018191561  419 esvSNF---LKDFLHKDRDDVNVeivflhnISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkyc 495
Cdd:COG0569    104 ---GRVgrsLARELEEEGHDVVV-------IDKDPERVERLAEEDVLV--IVGDATDEEVLEEAGIEDADAVIAATG--- 168
                          170       180
                   ....*....|....*....|....*...
gi 1018191561  496 adpdaEDASNIMRVISIKNYHPKiRIIT 523
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 ...
446-523 1.54e-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: 1.54e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1018191561  446 ISPNLELEALFKRHFTQVefYQGSVLNPHDLARVKIESADACLILANkycadpdaEDASNIMRVISIKNYHPKIRIIT 523
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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