3 (imidazol 5 yl)lactate dehydrogenase

In enzymology, a 3-(imidazol-5-yl)lactate dehydrogenase (EC 1.1.1.111) is an enzyme that catalyzes the chemical reaction

(S)-3-(imidazol-5-yl)lactate + NAD(P)+ ⇌ 3-(imidazol-5-yl)pyruvate + NAD(P)H + H⁺

The 3 substrates of this enzyme are (S)-3-(imidazol-5-yl)lactate, NAD⁺, and NADP⁺, whereas its 4 products are 3-(imidazol-5-yl)pyruvate, NADH, NADPH, and H⁺.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD⁺ or NADP⁺ as acceptor. The systematic name of this enzyme class is (S)-3-(imidazol-5-yl)lactate:NAD(P)⁺ oxidoreductase. This enzyme is also called imidazol-5-yl lactate dehydrogenase.