pH-gated potassium channel KcsA

UniProtKB accession:  P0A334
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Go to UniProtKB:  P0A334
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(+).
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Structure Features

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Protein Domains