Catalyzes the first reaction in the catabolism of the essential branched chain amino acids leucine, isoleucine, and valine. Belongs to the class-IV pyridoxal-phosphate-dependent aminotransferase family. 4 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Amino Acid Metabolism - valine, leucine and isoleucine biosynthesis; Amino Acid Metabolism - valine, leucine and isoleucine degradation; Cofactor and Vitamin Metabolism - pantothenate and CoA biosynthesis; EC 18.104.22.168; Transferase