The molecule is a tetrapeptide composed of L-proline, L-tryptophan, L-valine, and glycine joined by peptide linkages. It has a role as a metabolite. It derives from a L-proline, a L-tryptophan, a L-valine and a glycine.
2-[[(2S)-2-[[(2S)-3-(1H-indol-3-yl)-2-[[(2S)-pyrrolidine-2-carbonyl]amino]propanoyl]amino]-3-methylbutanoyl]amino]acetic acid