[{"from": "human", "value": "Provide a description of this molecule. [C][C][C@H1][Branch1][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@@H1][C][C][C][N][Ring1][Branch1][C][=Branch1][C][=O][C@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@H1][Branch1][=Branch1][C][Branch1][C][C][C][N][C][=Branch1][C][=O][C@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][=Branch1][C][=O][C@@H1][C][C][C][N][Ring1][Branch1][C][=Branch1][C][=O][C@H1][Branch1][=N][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][N]"}, {"from": "gpt", "value": "The molecule is a seven amino acid oligopeptide fragment of the human milk protein, beta-casein. It is an inhibitor of pancreatic elastase, 5-HT2-serotonin receptors, mu-opioid receptors and delta-opioid receptors. It has a role as a mu-opioid receptor antagonist, a delta-opioid receptor antagonist, a serotonergic antagonist, a human metabolite and an EC 3.4.21.36 (pancreatic elastase) inhibitor. It is a conjugate acid of a beta-casomorphin-7 (human)(1-)."}]