[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][=C][C@H1][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][O][O]"}, {"from": "gpt", "value": "The molecule is a hydroxy-amino acid consisting of L-threonine having a hydroxy substituent at the 4-position. It has a role as a Saccharomyces cerevisiae metabolite and an Escherichia coli metabolite. It is a L-threonine derivative, a non-proteinogenic L-alpha-amino acid and a hydroxy-amino acid. It is a tautomer of a 4-hydroxy-L-threonine zwitterion."}]