(redirected from guanosine triphosphate)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to guanosine triphosphate: adenosine triphosphate, GTP


C10H13O5N5 Guanine riboside, a nucleoside composed of guanine and ribose. Also known as vernine.



the nucleoside consisting of the carbohydrate ribose and the nitrogen base guanine. Colorless crystals. Molecular weight, 283.26 and melting point. 235° C. Free guanosine is an intermediate product of metabolism. It is a component of nucleic acids and biologically active guanyl nucleotides, GMP, GDP. and GTP. GTP (guanosine triphosphate), an energy-rich phosphorus compound, is a coenzyme of some reactions, such as the amination of inosinic acid and the transference of amino acids to ribosomes during the biosynthesis of protein.

References in periodicals archive ?
They're disorders that roll off the tongue like succinic semialdehyde dehydrogenase deficiency, guanosine triphosphate cyclohydrolase I deficiency, and aromatic Lamino acid decarobxylase deficiency.
Nitric oxide binds to the haem moiety of guanylate cyclase and increases its activity by 400-fold, catalyzing the conversion of guanosine triphosphate to cyclic guanosine monophosphate (cGMP).
These diverse effects result in a marked reduction of intracellular guanosine triphosphate pools and inhibition of viral RNA and protein synthesis.