Post Translational Modifications | N-glycosylated. The extracellular domain contains disulfide bond essential for the gating mechanism. |
Function | 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. |
Protein Name | Calcium-Activated Potassium Channel Subunit Beta-3Bk Channel Subunit Beta-3Bkbeta3Hbeta3Calcium-Activated Potassium Channel - Subfamily M Subunit Beta-3Charybdotoxin Receptor Subunit Beta-3K(Vcabeta-3Maxi K Channel Subunit Beta-3Slo-Beta-3 |
Database Links | Reactome: R-HSA-1296052Reactome: R-HSA-418457 |
Cellular Localisation | MembraneMulti-Pass Membrane Protein |
Alternative Antibody Names | Anti-Calcium-Activated Potassium Channel Subunit Beta-3 antibodyAnti-Bk Channel Subunit Beta-3 antibodyAnti-Bkbeta3 antibodyAnti-Hbeta3 antibodyAnti-Calcium-Activated Potassium Channel - Subfamily M Subunit Beta-3 antibodyAnti-Charybdotoxin Receptor Subunit Beta-3 antibodyAnti-K(Vcabeta-3 antibodyAnti-Maxi K Channel Subunit Beta-3 antibodyAnti-Slo-Beta-3 antibodyAnti-KCNMB3 antibodyAnti-KCNMB2 antibodyAnti-KCNMBL antibody |
Information sourced from Uniprot.org