Tags: Enzyme.
In enzymology a cystine reductase (EC 1.8.1.6) is an enzyme that catalyzes the chemical reaction2 L-cysteine + NAD+ L-cystine + NADH + H+Thus the two substrates of this enzyme are L-cysteine and NAD+ whereas its 3 products are L-cystine NADH and H+.This enzyme belongs to the family of oxidoreductases specifically those acting on a sulfur group of donors with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is L-cysteine:NAD+ oxidoreductase.