[{"from": "human", "value": "Please give me some details about this molecule. [C][C@H1][Branch2][Branch1][N][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C@H1][Branch1][Branch1][C][C][S][C][N][C][=Branch1][C][=O][C][N][C][=Branch1][C][=O][C@H1][Branch1][#Branch2][C][C][C][NH1+1][=C][Branch1][C][N][N][N][C][=Branch1][C][=O][C@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O-1][NH3+1][O]"}, {"from": "gpt", "value": "The molecule is a pentapeptide zwitterion resulting from transfer of protons from the carboxy to the amino groups of L-glutamyl-L-arginyl-glycyl-L-methionyl-L-threonine; major species at pH 7.3. It is a quorum-sensing molecule secreted by Bacillus subtilis. It is a tautomer of a Glu-Arg-Gly-Met-Thr."}]