 Cob(II)alamin reductase

In enzymology, a cob(II)alamin reductase () is an enzyme that catalyzes the chemical reaction

Thus, the two substrates of this enzyme are cob(I)alamin and NAD+, whereas its 3 products are cob(II)alamin, NADH, and H+.This enzyme belongs to the family of oxidoreductases, specifically those oxidizing metal ion with NAD+ or NADP+ as acceptor.