[{"from": "human", "value": "Describe this molecule. [C][=N][C][=C][Branch2][Ring2][#C][N][Ring1][Branch1][C@H1][C@@H1][Branch2][Ring2][=Branch1][C@@H1][Branch2][Ring1][P][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][#Branch2][N][P][=Branch1][C][=O][Branch1][C][O][O][O][O][O][N][=C][Branch1][#Branch1][N][C][Ring2][Ring1][N][=O][N]"}, {"from": "gpt", "value": "The molecule is a nucleoside triphosphate analogue that is GTP in which the oxygen atom bridging the beta- to the gamma- phosphate is replaced by a nitrogen atom A non-hydrolyzable analog of GTP, it binds tightly to G-protein in the presence of Mg(2+). It is a conjugate acid of a guanosine 5'-[beta,gamma-imido]triphosphate(4-)."}]