pH-gated potassium channel KcsA
UniProtKB accession: P0A334
Grouped By: Matching UniProtKB accession
UniProtKB description: Acts as a pH-gated potassium ion channel; changing the cytosolic pH from 7 to 4 opens the channel, although it is not clear if this is the physiological stimulus for channel opening. Monovalent cation preference is K(+) > Rb(+) > NH4(+) >> Na(+) > Li(+).