[{"from": "human", "value": "Please give me some details about this molecule. [C][Branch1][Ring1][C][Se][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a selenoamino acid that is the selenium analogue of L-homocysteine. It has a role as a mammalian metabolite. It is a tautomer of a L-selenohomocysteine zwitterion."}]