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GTP

{| class=rimage border=1 |Empirical formula||C10H16N5O14P3 |-- |Molecular weight||523.18 |} GTP (also known as guanylyl imidodiphosphate, guanosine-5'-triphosphate, or guanosine triphosphate) is a chemical compound (nucleotide) essential to signal transduction in living cells, where it is converted to GDP through GTPases.

GTP also can be involved in energy transfer within the cell. For instance, one GTP molecule is generated for every turn of the Krebs cycle. This is tantamount to the generation of one molecule of ATP since GTP is readilty converted to ATP.