catalytic activity:2-oxoglutaric acid + L-isoleucine = (S)-3-methyl-2-oxopentanoic acid + L-glutamic acid.,catalytic activity:2-oxoglutaric acid + L-valine = 3-methyl-2-oxobutanoic acid + L-glutamic acid.,catalytic activity:L-leucine + 2-oxoglutarate = 4-methyl-2-oxopentanoate + L-glutamate.,cofactor:Pyridoxal phosphate.,function:Catalyzes the first reaction in the catabolism of the essential branched chain amino acids leucine, isoleucine, and valine.,similarity:Belongs to the class-IV pyridoxal-phosphate-dependent aminotransferase family.,subunit:Homodimer.,tissue specificity:During embryogenesis, expressed in the brain and kidney. Overexpressed in C-myc induced tumors such as Burkitt's lymphoma.,
Cytoplasm.
During embryogenesis, expressed in the brain and kidney. Overexpressed in MYC-induced tumors such as Burkitt's lymphoma.