Guanosine
Chemical compound / From Wikipedia, the free encyclopedia
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Guanosine (symbol G or Guo) is a purine nucleoside comprising guanine attached to a ribose (ribofuranose) ring via a β-N9-glycosidic bond. Guanosine can be phosphorylated to become guanosine monophosphate (GMP), cyclic guanosine monophosphate (cGMP), guanosine diphosphate (GDP), and guanosine triphosphate (GTP). These forms play important roles in various biochemical processes such as synthesis of nucleic acids and proteins, photosynthesis, muscle contraction, and intracellular signal transduction (cGMP). When guanine is attached by its N9 nitrogen to the C1 carbon of a deoxyribose ring it is known as deoxyguanosine.
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Guanosine[1] | |
Systematic IUPAC name
2-Amino-9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,9-dihydro-6H-purin-6-one | |
Other names
Guanine riboside | |
Identifiers | |
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ECHA InfoCard | 100.003.844 |
KEGG |
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MeSH | Guanosine |
PubChem CID |
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CompTox Dashboard (EPA) |
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Properties | |
C10H13N5O5 | |
Molar mass | 283.241 |
Appearance | white, crystalline powder[2] |
Odor | odorless[2] |
Melting point | 239 (decomposes)[3] |
-149.1·10−6 cm3/mol | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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