>sp|P0A334|KCSA_STRLI pH-gated potassium channel KcsA OS=Streptomyces lividans GN=kcsA MPPMLSGLLARLVKLLLGRHGSALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLI TYPRALWWSVETATTVGYGDLYPVTLWGRLVAVVVMVAGITSFGLVTAALATWFVGREQE RRGHFVRHSEKAAEEAYTRTTRALHERFDRLERMLDDNRR