[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][Branch1][=C][N][Ring1][=Branch1][C][Branch1][Ring1][C][#N][S][C][C@@H1][Branch2][Ring1][Branch1][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is a peptide anion obtained by deprotonation of the carboxy groups and protonation of the free amino group of gammaGluCys(IAN)Glu; major species at pH 7.3. It is a conjugate base of a gammaGluCys(IAN)Glu."}]