>tr|Q9P9G2 F420H2 dehydrogenase subunit FpoB - Methanosarcina mazei (Methanosarcina frisia). MGEVKETKTNNSKENPEEEVPGVITTTTSAIHNFLKKTKAQDIINWGRKNSLWFMTQPMGCCGVEMIATGCAHYDTDRFG IIPRNSPRHADVMIISGYVTKKYLPALKRLWDQMPAPKWVIAMGDCAISGGPFYESYSTVQNIDEIFPIDVYIPGCPPRP EALIQGFVELQEKIKARKDRGTEY