Main Reaction: valine >> alpha-keto-beta-methylbutyric acid

Reference: PubMed ID: 14907681
Authors: UMBARGER HE, ADELBERG EA
Title: The rôle of alpha-keto- beta-ethylbutyric acid in the biosynthesis of isoleucine.
Published: 1951 Oct

valine --> alpha-keto-beta-methylbutyric acid