[{"from": "human", "value": "Please give me some details about this molecule. [C][Branch1][=Branch2][C][C][N][C][C][C][C][N][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is an L-lysine derivative in which the N(6) of the lysine is substituted with a 4-aminobutyl group. It has a role as a human metabolite. It is a non-proteinogenic L-alpha-amino acid and a L-lysine derivative. It is functionally related to a hypusine."}]