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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 Show/Hide all (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 Show/Hide all (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 Show/Hide all (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 Pathway Reactome Pathway
cGMP-PKG signaling pathway Ca2+ activated K+ channels
Vascular smooth muscle contraction  
Insulin secretion  
Renin secretion  
Salivary secretion  
Pancreatic secretion  
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
53
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Show/Hide Causal Diseases (6)
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Autism spectrum disorder Likely pathogenic rs2551714172 RCV003127290
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Cerebellar atrophy, developmental delay, and seizures Likely pathogenic; Pathogenic rs1348741432, rs762705295, rs1328294721, rs2096271045 RCV003994697
RCV000504577
RCV000852286
RCV001260493
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
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
View all (13 more)
★★★★★
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Intellectual disability Likely pathogenic; Pathogenic rs150678882, rs2049489016 RCV001252026
RCV001257729
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
KCNMA1-related disorder Likely pathogenic; Pathogenic rs2090875352, rs2549937925, rs2551802036, rs150678882 RCV004553629
RCV004548662
RCV004552482
RCV001420997
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Show/Hide Unknown Diseases (47)
Phenotype Name Clinical Significance Source Reference Evidence Score
ALZHEIMERS DISEASE — Disgenet —
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ANDROGENETIC ALOPECIA — GWAS catalog 30573740
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ANGIOEDEMA — GWAS catalog 32080354
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTISM SPECTRUM DISORDERS — Disgenet —
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTISTIC DISORDER — CTD, Disgenet
CTD, Disgenet
16946189
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Show/Hide Text Mining Associations (198)
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Abducens Nerve Palsy Abducens palsy CLINVAR_DG
★★★★★
★☆☆☆☆
Found in Text Mining only
Adenocarcinoma of lung (disorder) Lung adenocarcinoma BEFREE 25796627
★★★★★
★☆☆☆☆
Found in Text Mining only
Amnesia Amnesia BEFREE 30518785
★★★★★
★☆☆☆☆
Found in Text Mining only
Angioedema Angioedema Pubtator 32080354 Associate
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Aphasia Aphasia Pubtator 29545233 Associate
★★★★★
★☆☆☆☆
Found in Text Mining only
Apraxias Apraxia Pubtator 31152168 Associate
★★★★★
★☆☆☆☆
Found in Text Mining only
Arthritis Rheumatoid Rheumatoid arthritis Pubtator 22074915, 27165430, 28428266 Associate
★★★★★
★☆☆☆☆
Found in Text Mining only
Asymmetric crying face association Asymmetric crying face association CLINVAR_DG
★★★★★
★☆☆☆☆
Found in Text Mining only
Ataxia Ataxia Pubtator 31152168, 35156297 Associate
★★★★★
★☆☆☆☆
Found in Text Mining only
Atrophy Atrophy Pubtator 31152168 Associate
★★★★★
★☆☆☆☆
Found in Text Mining only