C

Molybdopterin oxidoreductase, transmembrane subunit, putative

Aldehyde:ferredoxin oxidoreductase, tungsten-containing, putative

Iron-sulfur cluster-binding protein

Nitrogen fixation protein NifU

Probable butyrate kinase

Phosphotransbutyrylase

Cytochrome c-type protein

L-lactate dehydrogenase

Formate dehydrogenase, beta subunit, putative

Formate dehydrogenase, alpha subunit, selenocysteine-containing