ID 1.16.1.4 DE Cob(II)alamin reductase. AN B(12r) reductase. AN NADH:cob(II)alamin oxidoreductase. AN Vitamin B(12r) reductase. CA 2 cob(I)alamin + NAD(+) = 2 cob(II)alamin + NADH. CF Flavoprotein. CC -!- Formerly EC 1.6.99.9. //