Methanobacterium thermoautotrophicus	-	744833	
Methanobacterium thermoautotrophicus DSM 2133	-	744833	
Methanocella conradii	-	764753	
Methanococcus maripaludis	and strains Mm1264 and Mm1265, derivatives of strain S2 incorporating a polyHis-tag at the C-terminus of HdrB (1264) and at the C-terminus of FdhA (1265), respectively	764153	
Methanococcus maripaludis	CoB-CoM heterodisulfide reductase iron-sulfur subunits A, B1, B2, C1, and C2	764753	
Methanococcus maripaludis LL	and strains Mm1264 and Mm1265, derivatives of strain S2 incorporating a polyHis-tag at the C-terminus of HdrB (1264) and at the C-terminus of FdhA (1265), respectively	764153	
Methanococcus maripaludis LL	CoB-CoM heterodisulfide reductase iron-sulfur subunits A, B1, B2, C1, and C2	764753	
Methanonatronarchaeum thermophilum	CoB-CoM heterodisulfide reductase subunit E; isolated from a hypersaline soda lake	764660	
Methanonatronarchaeum thermophilum AMET1	CoB-CoM heterodisulfide reductase subunit E; isolated from a hypersaline soda lake	764660	
Methanosarcina acetivorans	-	764753