. "Also catalyzes exchange reactions of carbon between C-1 of acetyl-CoA and CO, and between C-2 of acetyl-CoA and methyl corrinoid protein." . "Involved, together with EC 1.2.7.4, in the synthesis of acetyl-CoA from CO(2) and H(2)." . "To follow its stoichiometry, the reaction can be written as: CH(3)-CO-S-CoA + protein Co(+) + H(+) = CO + protein Co(2+)-CH(3) + HS-CoA." . . . "ACS" . "CO-methylating acetyl-CoA synthase" . "Acetyl-CoA + corrinoid protein = CO + methylcorrinoid protein + CoA." . "Iron-sulfur" . "Nickel" .