[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch1][C][C][C][C@@H1][Branch2][Ring1][#Branch1][C][=Branch1][C][=O][N][C@@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@H1][Branch1][Branch1][C][C][S][C][N][C][=O]"}, {"from": "gpt", "value": "The molecule is a tripeptide composed of L-Met, L-Leu and L-Phe in a linear sequence with a formyl group at the amino terminus. It acts as a potent inducer of leucocyte chemotaxis and macrophage activator as well as a ligand for the FPR receptor. It is a conjugate acid of a N-formyl-L-methionyl-L-leucyl-L-phenylalaninate(1-)."}]