>Synpcc7942_0991 proton extrusion protein PcxA MAFFAGISDWVAQRLQRNSETARLDLERAYEAALYITALETEYASGRSLRRLPSQLSARQ QTSLQAELRQTLRSLRHYRQRYRRHQPVQLQAGLALGRPGMGMPTIAHEKLQLIEQVLAR YGQPTVHSSNPDDSQLMTSKNNSKPVPDPESDDEYLISQTSFLPRSIFGAFADLRQQLDP KAEDQIVQNFRSRKGKTLIALRFVLLLVLVPLLTQQISKSFIVGPIVDRLRSQDPEAIFL NFQMEEEAFVKLNQYQQLLRFQHYLKEAPPLTEAEIDERVREKAEEIAVEYRQESSNAIK NIFADLISAAAFAILLISSQEEIQLLKSFIDEVVYGISDSAKAFIIILFTDIFVGFHSPH GWEVILESISRHFGIPENRSFIFLFIATFPVILDTIFKYWIFRYLNRISPSAVATYRNMN E