>tr|A0A832WKG9|A0A832WKG9_9EURY CoB--CoM heterodisulfide reductase subunit B OS=Methanocaldococcus jannaschii GN=hdrB MKYAFFLGCIMPHRYPGVEKATKIVMEELGVELEYMPGASCCPAPGVFGSFDQKTWLTLA ARNLCIAEEMGLDIVTVCNGCYGSLFEAAHILHENKEALDFVNEKLDKIGKQYKGTIKVR HFAELIYKDIGVDKIKEKVVKPLDVLNVAIHYGCHFLKPSDVKHLDSPERPKLLEEIVAA TGAKPVMYRDYLMCCGAGGGVRARFLPTALDMTKEKIRNMLEAGADCTVNVCPFCHLQFD RGQVEIKEKFGEEYKLPVLHLSQLLGLAFGMKPEDLAVSVHAIPVDPVLKKLGIE