Acetohydroxy Acid Isomeroreductase
Acid Isomeroreductase, Acetohydroxy
Alpha Acetohydroxyacid Isomeroreductase
Dihydroxyisovalerate Dehydrogenase (Isomerizing)
Isomeroreductase, Acetohydroxy Acid
Ketol Acid Reductoisomerase
An enzyme that catalyzes the oxidation of (R)-2,3-dihydroxy-3-methylbutanoate to (S)-2-hydroxy-2-methyl-3-oxobutanoate in the presence of NADP. It is involved in the biosynthesis of VALINE; LEUCINE; ISOLEUCINE; pentothenate and COENZYME A. This enzyme was formerly classified as EC 188.8.131.52.