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Guanylyl imidodiphosphate

(Science: chemical) 5'-guanylic acid, monoanhydride with imidophosphoric acid. An analog of gtp, in which the oxygen atom bridging the beta to the gamma phosphate is replaced by a nitrogen atom. The nucleotide is a potent stimulator of adenylate cyclase.

Synonym: GMP-p(nh)p; gpp(nh)p.

chemical name: 5'-Guanylic acid, monoanhydride with imidodiphosphoric acid