Methanothermobacter thermautotrophicus	-	639489	
Methanosarcina barkeri	-	687410	
Methanosarcina mazei	P80655: subunit B, P80653: subunit D, P80651: subunit E, P80654: subunit F, P80656: subunit G, P80650: subunit H	727407	
Methanosarcina mazei DSM 3647	P80655: subunit B, P80653: subunit D, P80651: subunit E, P80654: subunit F, P80656: subunit G, P80650: subunit H	727407	
Methanosarcina mazei	O59640: subunit A, P80655: subunit B, O59638: subunit C, P80653: subunit D, P80651: subunit E, P80654: subunit F, P80656: subunit G, P80650: subunit H	727499	
Methanosarcina mazei DSM 3647	O59640: subunit A, P80655: subunit B, O59638: subunit C, P80653: subunit D, P80651: subunit E, P80654: subunit F, P80656: subunit G, P80650: subunit H	727499	
Methanosarcina acetivorans	-	733227, 734072	
Methanothermobacter marburgensis	-	756076	
Methanocaldococcus jannaschii	-	758365	
Methanothermus fervidus	-	758365	
Methanothermus fervidus ATCC 43054	-	758365