Definitions for guanosineˈgwɑ nəˌsin, -sɪn
This page provides all possible meanings and translations of the word guanosine
Random House Webster's College Dictionary
gua•no•sineˈgwɑ nəˌsin, -sɪn(n.)
a ribonucleoside component of ribonucleic acid, comprising ribose and guanine.
Origin of guanosine:
a nucleoside component of DNA; composed of guanine and deoxyribose
A nucleoside derived from guanine and ribose.
Guanosine is a purine nucleoside comprising guanine attached to a ribose ring via a β-N9-glycosidic bond. Guanosine can be phosphorylated to become guanosine monophosphate, cyclic guanosine monophosphate, guanosine diphosphate, and guanosine triphosphate. These forms play important roles in various biochemical processes such as synthesis of nucleic acids and proteins, photosynthesis, muscle contraction and intracellular signal transduction. When guanine is attached by its N9 nitrogen to the C1 carbon of a deoxyribose ring it is known as deoxyguanosine. The antiviral drug aciclovir, often used in herpes treatment, is structurally similar to guanosine. Guanosine is required for an RNA splicing reaction in mRNA, when a "self-splicing" intron removes itself from the mRNA message by cutting at both ends, re-ligating, and leaving just the exons on either side to be translated into protein.
U.S. National Library of Medicine
A purine nucleoside that has guanine linked by its N9 nitrogen to the C1 carbon of ribose. It is a component of ribonucleic acid and its nucleotides play important roles in metabolism. (From Dorland, 28th ed)
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