SMILES: C1C[C@H]([NH2+]C1)C(=O)N2C[C@@H](C[C@H]2C(=O)[O-])O
Description: The molecule is a dipeptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of Pro-Hyp. Major species at pH 7.3. It has a role as a human metabolite and a biomarker. It is a tautomer of a Pro-Hyp.