[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][SH0]"}, {"from": "gpt", "value": "The molecule is a cysteinyl radical derived from L-cysteine. It has a role as a fundamental metabolite. It is a cysteinyl radical and a L-amino acid radical. It is functionally related to a L-cysteine. It is an enantiomer of a D-cysteinyl radical."}]