C

F420-non-reducing hydrogenase subunit (NCBI)

conserved hypothetical protein (NCBI)

ferredoxin (NCBI)

TonB-dependent receptor protein:Formate dehydrogenase, subunit FdhD (NCBI)

Rubrerythrin (NCBI)

heterosulfide reductase, subunit C1 (NCBI)

ferredoxin (NCBI)

CO dehydrogenase/acetyl-CoA synthase subunit delta (NCBI)

molybdenum containing formylmethanofuran dehydrogenase, subunit B (NCBI)

Succinate dehydrogenase/fumarate reductase iron-sulfur subunit // Methanosarcina type heterodisulfide reductase subunit D (NCBI)