Potassium calcium-activated channel subfamily M regulatory beta subunits
potassium calcium-activated channel subfamily m regulatory beta subunits
BK channels [potassium large conductance calcium activated channels] have a tetrameric structure. Each monomer of the channel-forming alpha subunit is the product of the KCNMA1 gene. Modulatory beta subunits (encoded by KCNMB1, KCNMB2, KCNMB3, or KCNMB4) can associate with the tetrametic channel.