[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][Ring1][C][O][C][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is an alpha-amino acid that is glycine substituted at the alpha-position by a 2-hydroxyethyl group. It has a role as a metabolite. It is a conjugate acid of a homoserinate."}]