The molecule is a tetrapeptide composed of L-alanine, L-leucine, L-alanine, and L-proline joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-alanine, a L-leucine and a L-proline.
(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-2-aminopropanoyl]amino]-4-methylpentanoyl]amino]propanoyl]pyrrolidine-2-carboxylic acid