Gene Gene information from NCBI Gene database.
Entrez ID 3778
Gene name Potassium calcium-activated channel subfamily M alpha 1
Gene symbol KCNMA1
Synonyms (NCBI Gene)
BKTMCADEDSIEG16KCa1.1LIWASMaxiKPNKD3SAKCASLOSLO-ALPHASLO1bA205K10.1hSlomSLO1
Chromosome 10
Chromosome location 10q22.3
Summary MaxiK channels are large conductance, voltage and calcium-sensitive potassium channels which are fundamental to the control of smooth muscle tone and neuronal excitability. MaxiK channels can be formed by 2 subunits: the pore-forming alpha subunit, which
SNPs SNP information provided by dbSNP.
20
SNP ID Visualize variation Clinical significance Consequence
rs2229008 G>T Conflicting-interpretations-of-pathogenicity, likely-benign Coding sequence variant, genic downstream transcript variant, synonymous variant
rs45617636 G>A,T Conflicting-interpretations-of-pathogenicity, benign-likely-benign, benign Coding sequence variant, genic downstream transcript variant, synonymous variant
rs61736948 C>A,T Conflicting-interpretations-of-pathogenicity Coding sequence variant, genic downstream transcript variant, synonymous variant, intron variant, 5 prime UTR variant, genic upstream transcript variant
rs77602559 T>C Uncertain-significance, likely-benign, conflicting-interpretations-of-pathogenicity Missense variant, genic upstream transcript variant, coding sequence variant
rs137853333 T>C Pathogenic Genic downstream transcript variant, missense variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
235
miRTarBase ID miRNA Experiments Reference
MIRT005943 hsa-miR-211-5p MicroarrayLacZ reporter assay 21072171
MIRT005943 hsa-miR-211-5p MicroarrayLacZ reporter assay 21072171
MIRT440404 hsa-miR-218-5p HITS-CLIP 23212916
MIRT440404 hsa-miR-218-5p HITS-CLIP 23212916
MIRT755615 hsa-miR-9-5p Immunohistochemistry (IHC) 38502673
Transcription factors Transcription factors information provided by TRRUST V2 database.
1
Transcription factor Regulation Reference
MITF Unknown 21072171
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
43
GO ID Ontology Definition Evidence Reference
GO:0001666 Process Response to hypoxia IDA 15528406
GO:0003779 Function Actin binding IDA 15703204
GO:0005216 Function Monoatomic ion channel activity IEA
GO:0005249 Function Voltage-gated potassium channel activity IDA 7877450, 7993625, 11880513, 12388065
GO:0005249 Function Voltage-gated potassium channel activity IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
600150 6284 ENSG00000156113
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q12791
Protein name Calcium-activated potassium channel subunit alpha-1 (BK channel) (BKCA alpha) (Calcium-activated potassium channel, subfamily M subunit alpha-1) (K(VCA)alpha) (KCa1.1) (Maxi K channel) (MaxiK) (Slo-alpha) (Slo1) (Slowpoke homolog) (Slo homolog) (hSlo)
Protein function Potassium channel activated by both membrane depolarization or increase in cytosolic Ca(2+) that mediates export of K(+) (PubMed:14523450, PubMed:29330545, PubMed:31152168). It is also activated by the concentration of cytosolic Mg(2+). Its acti
PDB 2K44 , 3MT5 , 3NAF , 6ND0 , 6V22 , 6V35 , 6V38 , 6V3G , 6V5A , 7YNZ , 7YO0 , 7YO1 , 7YO2 , 7YO3 , 7YO4 , 7YO5 , 8GH9 , 8GHF , 8GHG , 8V60 , 8V63 , 8V64 , 8VAV , 8VAZ , 8Z3S , 9CZH , 9CZJ , 9CZK , 9CZM , 9CZO , 9CZQ , 9D18 , 9D19 , 9JO3 , 9JO4
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00520 Ion_trans 178 397 Ion transport protein Family
PF03493 BK_channel_a 538 633 Calcium-activated BK potassium channel alpha subunit Family
Tissue specificity TISSUE SPECIFICITY: Widely expressed. Except in myocytes, it is almost ubiquitously expressed. {ECO:0000269|PubMed:11880513}.
Sequence
MANGGGGGGGSSGGGGGGGGSSLRMSSNIHANHLSLDASSSSSSSSSSSSSSSSSSSSSS
VHEPKMDALIIPVTMEVPCDSRGQRMWWAFLASSMVTFFGGLFIILLWRTLKYLWTVCCH
CGGKTKEAQKINNGSSQADGTLKPVDEKEEAVAAEVGWMTSVKDWAGVMISAQTLTGRVL
VVLVFALSIGALVIYFIDSSNPIESCQNFYKDFTLQIDMAFNVFFLLYFGLRFIAANDKL
WFWLEVNSVVDFFTVPPVFVSVYLNRSWLGLRFLRALRLIQFSEILQFLNILKTSNSIKL
VNLLSIFISTWLTAAGFIHLVENSGDPWENFQNNQALTYWECVYLLMVTMSTVGYGDVYA
KTTLGRLFMVFFILGGLAMFASYVPEIIELIGNRKKY
GGSYSAVSGRKHIVVCGHITLES
VSNFLKDFLHKDRDDVNVEIVFLHNISPNLELEALFKRHFTQVEFYQGSVLNPHDLARVK
IESADACLILANKYCADPDAEDASNIMRVISIKNYHPKIRIITQMLQYHNKAHLLNIPSW
NWKEGDDAICLAELKLGFIAQSCLAQGLSTMLANLFSMRSFIKIEEDTWQKYYLEGVSNE
MYTEYLSSAFVGLSFPTVCELCFVKLKLLMIAI
EYKSANRESRILINPGNHLKIQEGTLG
FFIASDAKEVKRAFFYCKACHDDITDPKRIKKCGCKRPKMSIYKRMRRACCFDCGRSERD
CSCMSGRVRGNVDTLERAFPLSSVSVNDCSTSFRAFEDEQPSTLSPKKKQRNGGMRNSPN
TSPKLMRHDPLLIPGNDQIDNMDSNVKKYDSTGMFHWCAPKEIEKVILTRSEAAMTVLSG
HVVVCIFGDVSSALIGLRNLVMPLRASNFHYHELKHIVFVGSIEYLKREWETLHNFPKVS
ILPGTPLSRADLRAVNINLCDMCVILSANQNNIDDTSLQDKECILASLNIKSMQFDDSIG
VLQANSQGFTPPGMDRSSPDNSPVHGMLRQPSITTGVNIPIITELVNDTNVQFLDQDDDD
DPDTELYLTQPFACGTAFAVSVLDSLMSATYFNDNILTLIRTLVTGGATPELEALIAEEN
ALRGGYSTPQTLANRDRCRVAQLALLDGPFADLGDGGCYGDLFCKALKTYNMLCFGIYRL
RDAHLSTPSQCTKRYVITNPPYEFELVPTDLIFCLMQFDHNAGQSRASLSHSSHSSQSSS
KKSSSVHSIPSTANRQNRPKSRESRDKQKYVQEERL
Sequence length 1236
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  cGMP-PKG signaling pathway
Vascular smooth muscle contraction
Insulin secretion
Renin secretion
Salivary secretion
Pancreatic secretion
  Ca2+ activated K+ channels
Associated diseases Disease associations from ClinVar categorized as Causal (Pathogenic/Likely Pathogenic) or Unknown.
1238
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Autism spectrum disorder Likely pathogenic rs2551714172 RCV003127290
Cerebellar atrophy, developmental delay, and seizures Likely pathogenic; Pathogenic rs1348741432, rs762705295, rs1328294721, rs2096271045 RCV003994697
RCV000504577
RCV000852286
RCV001260493
Generalized epilepsy-paroxysmal dyskinesia syndrome Pathogenic; Likely pathogenic rs753408207, rs2093893902, rs2154251764, rs2090875352, rs2153792334, rs2152944295, rs2153773364, rs863224885, rs137853333, rs886039469, rs2549038309, rs2551593769, rs2550658119, rs1554966197, rs1565091862
View all (3 more)
RCV001385175
RCV001988029
RCV001976650
RCV002009234
RCV001945420
RCV001923418
RCV002250063
RCV000200082
RCV000010034
RCV000504575
RCV003510556
RCV003510614
RCV003623493
RCV000504574
RCV000710351
RCV001065360
RCV001212768
RCV001300650
Intellectual disability Likely pathogenic; Pathogenic rs150678882, rs2049489016 RCV001252026
RCV001257729
Unknown Diseases with uncertain, conflicting, or no pathogenic evidence in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Cholangiocarcinoma Benign rs2574790 RCV005925080
Epilepsy, idiopathic generalized, susceptibility to, 16 Likely benign; Conflicting classifications of pathogenicity; Uncertain significance; Benign rs79390996, rs188354139, rs2154571203, rs202124080, rs2154549804, rs2154521818, rs1356235297, rs1489738951, rs1328322372, rs116546993, rs200420124, rs1453880868, rs373620901, rs1555528807, rs13377017
View all (7 more)
RCV002495934
RCV005396981
RCV001837325
RCV001839216
RCV002227755
RCV002266690
RCV003988089
RCV003224695
RCV003388264
RCV002504060
RCV002494945
RCV005054537
RCV001591163
RCV002483417
RCV003224360
RCV002485759
RCV003224444
RCV005392414
RCV003128412
RCV004799339
RCV001262815
RCV002493605
Gastric cancer Benign rs1871066 RCV005919833
Global developmental delay Uncertain significance rs1476399505 RCV001787702
Associations from Text MiningDisease associations identified through Pubtator
Disease Name Relationship Type References
Adenoma Oxyphilic Associate 25848765, 28975890
Allergic Fungal Sinusitis Associate 24595210
Angioedema Associate 32080354
Aortic Root Aneurysm Associate 34499417
Aphasia Associate 29545233
Apraxias Associate 31152168
Arthritis Rheumatoid Associate 22074915, 27165430, 28428266
Ataxia Associate 31152168, 35156297
Atrophy Associate 31152168
Autism Spectrum Disorder Associate 31674007, 35509069, 40483526