for references in articles please use BRENDA:EC1.2.99.2
Contains a [Ni3Fe-4S] cluster and [4Fe-4S] clusters. It uses many electron acceptors, including ferredoxin, methyl viologen and benzyl viologen and flavins, but not pyridine nucleotides. Forms part of a membrane-bound multienzyme complex with EC 1.12.99.6, hydrogenase (acceptor), which catalyses the overall reaction: CO + H2O = CO2 + H2.