KCNMB3

• Official Symbol: KCNMB3
• Official Name: potassium calcium-activated channel subfamily M regulatory beta subunit 3
• Aliases and Previous Symbols: N/A
• Entrez ID: 27094
• UniProt: Q9NPA1
• Interactions: BioGRID
• PubMed articles: Open PubMed
• OMIM: Open OMIM

• Entrez Summary: N/A
• UniProt Summary: Regulatory subunit of the calcium activated potassium KCNMA1 (maxiK) channel. Modulates the calcium sensitivity and gating kinetics of KCNMA1, thereby contributing to KCNMA1 channel diversity. Alters the functional properties of the current expressed by the KCNMA1 channel. Isoform 2, isoform 3 and isoform 4 partially inactivate the current of KCNBMA. Isoform 4 induces a fast and incomplete inactivation of KCNMA1 channel that is detectable only at large depolarizations. In contrast, isoform 1 does not induce detectable inactivation of KCNMA1. Two or more subunits of KCNMB3 are required to block the KCNMA1 tetramer. {ECO:0000269|PubMed:10766764, ECO:0000269|PubMed:10864947}.

Pfam Domains GO Terms

Compound Hit Most Correlated Genes in Chemogenomics Tissues where Essential in the Avana Dataset (DepMap 20Q1)

• Essentiality Rank: 15960
• Expression level (log2 read counts): 3.59

Expression Distribution

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KCNMB3 Expression in NALM6 Cells: 3.59