[{"from": "human", "value": "Could you provide a description of this molecule? [C][Branch1][=N][C][Se][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a member of the class of cystathionines derived from homoselenocysteine and serine residues joined by a selenide bond. It is a member of cystathionines and a selenoamino acid."}]