Protein
Ion-translocating oxidoreductase complex subunit A
Organism
Methanosarcina acetivorans (strain ATCC 35395 / DSM 2834 / JCM 12185 / C2A)
Function
Part of a membrane-bound complex that couples electron transfer with translocation of ions across the membrane. Catalyzes Na(+) transport, most probably coupled to electron transfer from reduced ferredoxin to methanophenazine and heterodisulfide reductase. Involved in heterodisulfide reduction during methanogenesis from acetate.
Similarity
Belongs to the NqrDE/RnfAE family.
Sequence
MVKMAESLFTIFLEGVFIKNFLLIQFLGLCSFVGVTKDLKSASGMSGAVVFVMAMAATVSFALYNFILVPLKLEFLRTIAFIVVIAALVQLVEFIVRKHVPALYRSLGIYLPLITTNCAVLGAVLLNVMNDYDLAQSVVFGVAAGLGYTVAMLMMAAIRERSDLVEVPKSVGRGVTYAFFIATIMSMSFVNFFGVIPLE