Guanosine diphosphate
| Identifiers | |
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| 3D model (JSmol) | |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| PubChem CID | |
| UNII | |
| CompTox Dashboard (EPA) | |
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| Properties | |
| C10H15N5O11P2 | |
| Molar mass | 443.200522 | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Guanosine diphosphate, abbreviated GDP, is a nucleoside diphosphate. It is an ester of pyrophosphoric acid with the nucleoside guanosine. GDP consists of a pyrophosphate group, a pentose sugar ribose, and the nucleobase guanine.
GDP is the product of GTP dephosphorylation by GTPases, e.g., the G-proteins that are involved in signal transduction.
GDP is converted into GTP with the help of pyruvate kinase and phosphoenolpyruvate.