Guanosine


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Guanosine: guanosine monophosphate

guanosine

[′gwän·ə‚sēn]
(biochemistry)
C10H13O5N5 Guanine riboside, a nucleoside composed of guanine and ribose. Also known as vernine.

Guanosine

 

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 ?
Meanwhile, Cordyceps samples were used as controls for the analysis of various nucleosides including uridine, guanosine, adenosine and cordycepin.
This study aims to determine the acute effect of caffeine (5 mg/kg body weight) on the response of some oxidative stress indicator [(total anti-oxidation capacity (TAC), MDA and serum total thiol molecules (TTM) and its DNA damage (8-hydroxy-2-deoxy guanosine (8-OH-dG) levels)] in non-athletic males.
An L-arginine nitric oxide cyclic guanosine monophosphate system exists in the uterus and inhibits contractility during pregnancy.
Effects of morphine administration on cerebellar guanosine 3',5'-monophosphate.
5'-carboxy guanosine, bio-conjugation, nucleic acid synthesis
These medications ameliorate ED by inhibiting degradation of cyclic guanosine monophosphate by PDE5, which increases blood flow to the penis during sexual stimulation.
The drug interferes with a signalling chain of the messenger cyclic guanosine monophosphate (cGMP), which allows the inflow of blood and an erection.
The smooth muscle relaxation effect is produced through the activation of guanyalate cyclase and resulting increase in intracellular cyclic guanosine 3-5-monophosphate.
Neopterin (6-D-erythro-hydroxy propyl pteridine) is a catabolic product of the purine nucleotide guanosine triphosphate.
The mechanism seems to involve l-arginine-nitric oxide (NO)-cyclic guanosine monophosphate (cGMP) signaling pathway (Kulkarni 2007).
The abrupt global changes in gene expression associated with the stringent response are mainly triggered by the intracellular accumulation of two small molecules called guanosine 3'-diphosphate 5'-triphosphate and guanosine 3',5'-bis(diphosphate), collectively called (p)ppGpp (1).
The parasympathetic nerves are stimulated when man arouses sexually, leading to penile erection as result of release nitric oxide (NO) which works by activation of the enzyme guanylate cyclase responsible for converting guanosine triphosphate (GTP) to 3'5' cyclic guanosine monophosphate (cGMP).