The molecule is a tetrapeptide composed of L-lysine, L-threonine and two L-proline units joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-lysine, a L-threonine and a L-proline.
(2S)-1-[(2S)-1-[(2S,3R)-2-[[(2S)-2,6-diaminohexanoyl]amino]-3-hydroxybutanoyl]pyrrolidine-2-carbonyl]pyrrolidine-2-carboxylic acid