Definitions for guanosine diphosphate

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  1. Guanosine diphosphate

    Guanosine diphosphate, abbreviated GDP, is a nucleoside diphosphate. It is an ester of pyrophosphoric acid with the nucleoside guanosine. GDP consists of the pyrophosphate group, the 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.

U.S. National Library of MedicineRate this definition:(0.00 / 0 votes)

  1. Guanosine Diphosphate

    A guanine nucleotide containing two phosphate groups esterified to the sugar moiety.


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