Gene Information
Gene NameKCNMB3
OrganismHomo sapiens (Human)
Gene Length279
Protein NamesCalcium-activated potassium channel subunit beta-3 (BK channel subunit beta-3) (BKbeta3) (Hbeta3) (Calcium-activated potassium channel, subfamily M subunit beta-3) (Charybdotoxin receptor subunit beta-3) (K(VCA)beta-3) (Maxi K channel subunit beta-3) (Slo-beta-3)
Target Namecalcium-activated potassium channel
Target TypeNA
Gene Age680 ( ENSG00000171121 )
Evolutionary StageEumetazoa
AlphaFoldDBQ9NPA1
Gene CardKCNMB3
Uniprot IDQ9NPA1
PfamPF03185
In ASDno
Allosteric Predictionno (-0.459922156)
Ortholog in AnimalsAlpaca_ KCNMB3 ( ortholog_one2one )
Dog_ KCNMB3 ( ortholog_one2one )
GuineaPig_ KCNMB3 ( ortholog_one2one )
Macaque_ KCNMB3 ( ortholog_one2one )
Mouse_ Kcnmb3 ( ortholog_one2one )
Pig_ KCNMB3 ( ortholog_one2one )
Rat_ Kcnmb3 ( ortholog_one2one )
Rabbit_ KCNMB3 ( ortholog_one2one )
OhnologsNA
ParalogsKCNMB2, KCNMB1, KCNMB4
TissueNA
Tissue SpecificityIsoform 1, isoform 3 and isoform 4 are widely expressed. Isoform 2 is expressed placenta, pancreas, kidney and heart. Isoform 1 and isoform 3 are highly expressed in pancreas and testis. {ECO:0000269|PubMed:10585773, ECO:0000269|PubMed:10692449, ECO:0000269|PubMed:10766764}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs1170672  rs7645550  rs2276802  rs55710741  rs145985409 
Subcellular location [CC]Membrane;
Multi-pass membrane protein.
Mouse PG classificationNA
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