$$\ce{C₆H₁₃NO₂}$$ Essential Amino Acid Branched Chain Amino Acid Ketogenic Amino Acid glucogenic-amino-acid Aliphatic Amino Acid Hydrophobic Metabolized primarily in skeletal-muscle not liver requires vitamin-b6 for metabolism Backlinks Brain Derived Neurotropic Factor 5 isoleucine Nerve Growth Factor 6 isoleucine