>sp|Q8PU58|FPOA_METMA F(420)H(2) dehydrogenase subunit A OS=Methanosarcina mazei GN=fpoA MIGDTMSGIIDSYIPVAIFLAVGLIMPPMTMFMVKQLSPRSKAASKYTTYESGSVPTGTA RIQFNVEYYLYAIAFVLFDIEVLFLYPWATVYKGHGITSIAVVEMFVFIFILLFGYVYLW KKEALTWVK