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Record Information
Version1.0
Creation Date2016-09-30 22:20:00 UTC
Update Date2020-06-04 20:45:00 UTC
BMDB IDBMDB0000133
Secondary Accession Numbers
  • BMDB00133
Metabolite Identification
Common NameGuanosine
DescriptionGuanosine, also known as G or 2-amino-inosine, belongs to the class of organic compounds known as purine nucleosides. Purine nucleosides are compounds comprising a purine base attached to a ribosyl or deoxyribosyl moiety. Guanosine exists as a solid, possibly soluble (in water), and a moderately basic compound (based on its pKa) molecule. Guanosine exists in all living species, ranging from bacteria to humans. In cattle, guanosine is involved in a couple of metabolic pathways, which include the intracellular signalling through adenosine receptor A2A and adenosine pathway and the intracellular signalling through adenosine receptor A2B and adenosine pathway. Guanosine is a potentially toxic compound.
Structure
Thumb
Synonyms
ValueSource
2(3H)-Imino-9-beta-D-ribofuranosyl-9H-purin-6(1H)-oneChEBI
2-Amino-1,9-dihydro-9-beta-D-ribofuranosyl-6H-purin-6-oneChEBI
2-Amino-9-beta-D-ribofuranosyl-1,9-dihydro-6H-purin-6-oneChEBI
9-beta-D-Ribofuranosyl-guanineChEBI
GChEBI
Guanine ribosideChEBI
Guanine-9-beta-D-ribofuranosideChEBI
GuanosinChEBI
GuoChEBI
2(3H)-Imino-9-b-D-ribofuranosyl-9H-purin-6(1H)-oneGenerator
2(3H)-Imino-9-β-D-ribofuranosyl-9H-purin-6(1H)-oneGenerator
2-Amino-1,9-dihydro-9-b-D-ribofuranosyl-6H-purin-6-oneGenerator
2-Amino-1,9-dihydro-9-β-D-ribofuranosyl-6H-purin-6-oneGenerator
2-Amino-9-b-D-ribofuranosyl-1,9-dihydro-6H-purin-6-oneGenerator
2-Amino-9-β-D-ribofuranosyl-1,9-dihydro-6H-purin-6-oneGenerator
9-b-D-Ribofuranosyl-guanineGenerator
9-Β-D-ribofuranosyl-guanineGenerator
Guanine-9-b-D-ribofuranosideGenerator
Guanine-9-β-D-ribofuranosideGenerator
2-Amino-1,9-dihydro-9-beta-delta-ribofuranosyl-6H-purin-6-oneHMDB
2-Amino-inosineHMDB
9-beta-delta-Ribofuranosyl-guanineHMDB
b-D-Ribofuranoside guanine-9HMDB
beta-delta-Ribofuranoside guanine-9HMDB
RibonucleosideHMDB
VernineHMDB
Chemical FormulaC10H13N5O5
Average Molecular Weight283.2407
Monoisotopic Molecular Weight283.091668551
IUPAC Name2-amino-9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6,9-dihydro-1H-purin-6-one
Traditional Nameguanosine
CAS Registry Number118-00-3
SMILES
NC1=NC2=C(N=CN2[C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)C(=O)N1
InChI Identifier
InChI=1S/C10H13N5O5/c11-10-13-7-4(8(19)14-10)12-2-15(7)9-6(18)5(17)3(1-16)20-9/h2-3,5-6,9,16-18H,1H2,(H3,11,13,14,19)/t3-,5-,6-,9-/m1/s1
InChI KeyNYHBQMYGNKIUIF-UUOKFMHZSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as purine nucleosides. Purine nucleosides are compounds comprising a purine base attached to a ribosyl or deoxyribosyl moiety.
KingdomOrganic compounds
Super ClassNucleosides, nucleotides, and analogues
ClassPurine nucleosides
Sub ClassNot Available
Direct ParentPurine nucleosides
Alternative Parents
Substituents
  • Purine nucleoside
  • Glycosyl compound
  • N-glycosyl compound
  • Pentose monosaccharide
  • Imidazopyrimidine
  • Purine
  • Hydroxypyrimidine
  • Monosaccharide
  • N-substituted imidazole
  • Pyrimidine
  • Heteroaromatic compound
  • Azole
  • Imidazole
  • Tetrahydrofuran
  • Secondary alcohol
  • Azacycle
  • Oxacycle
  • Organoheterocyclic compound
  • Primary alcohol
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Alcohol
  • Hydrocarbon derivative
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
StatusDetected and Quantified
Origin
  • Endogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cytoplasm
  • Lysosome
  • Mitochondria
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point239 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.7 mg/mL at 18 °CNot Available
LogP-1.9SANGSTER (1993)
Predicted Properties
PropertyValueSource
logP-2.1ALOGPS
logP-2.7ChemAxon
logS-1.3ALOGPS
pKa (Strongest Acidic)10.16ChemAxon
pKa (Strongest Basic)0.45ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count8ChemAxon
Hydrogen Donor Count5ChemAxon
Polar Surface Area155.22 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity64.62 m³·mol⁻¹ChemAxon
Polarizability26.03 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Biological Properties
Cellular Locations
  • Cytoplasm
  • Lysosome
  • Mitochondria
Biospecimen Locations
  • Liver
  • Milk
  • Placenta
  • Prostate Tissue
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
LiverDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
LiverDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
LiverDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified0.830 +/- 0.320 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified0.8 uMNot SpecifiedNot Specified
Normal
details
PlacentaExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Prostate TissueExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0000133
DrugBank IDDB02857
Phenol Explorer Compound IDNot Available
FooDB IDFDB003632
KNApSAcK IDC00019679
Chemspider ID6544
KEGG Compound IDC00387
BioCyc IDGUANOSINE
BiGG ID51567
Wikipedia LinkGuanosine
METLIN ID87
PubChem Compound6802
PDB IDNot Available
ChEBI ID16750
References
Synthesis ReferenceTang, Shengrong; Huang, Weihong; Hou, Zuorong. Process of guanosine production by fermentation. Gongye Weishengwu (1998), 28(4), 11-16.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Schlimme E, Raezke KP, Ott FG: Ribonucleosides as minor milk constituents. Z Ernahrungswiss. 1991 Jun;30(2):138-52. [PubMed:1897275 ]
  2. Schlimme E, Martin D, Meisel H: Nucleosides and nucleotides: natural bioactive substances in milk and colostrum. Br J Nutr. 2000 Nov;84 Suppl 1:S59-68. [PubMed:11242448 ]
  3. Mung D, Li L: Development of Chemical Isotope Labeling LC-MS for Milk Metabolomics: Comprehensive and Quantitative Profiling of the Amine/Phenol Submetabolome. Anal Chem. 2017 Apr 18;89(8):4435-4443. doi: 10.1021/acs.analchem.6b03737. Epub 2017 Mar 28. [PubMed:28306241 ]

Enzymes

General function:
Involved in 5'-nucleotidase activity
Specific function:
May have a critical role in the maintenance of a constant composition of intracellular purine/pyrimidine nucleotides in cooperation with other nucleotidases. Preferentially hydrolyzes inosine 5'-monophosphate (IMP) and other purine nucleotides.
Gene Name:
NT5C2
Uniprot ID:
O46411
Molecular weight:
64841.0
Reactions
Guanosine monophosphate + Water → Guanosine + Hydrogen phosphatedetails
General function:
Nucleotide transport and metabolism
Specific function:
Hydrolyzes extracellular nucleotides into membrane permeable nucleosides.
Gene Name:
NT5E
Uniprot ID:
Q05927
Molecular weight:
62966.0
General function:
Nucleotide transport and metabolism
Specific function:
The purine nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the beta-(deoxy)ribonucleoside molecules, with the formation of the corresponding free purine bases and pentose-1-phosphate.
Gene Name:
PNP
Uniprot ID:
P55859
Molecular weight:
32037.0
Reactions
Guanosine + Hydrogen phosphate → Guanine + Ribose 1-phosphatedetails
General function:
Transcription
Specific function:
DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
Gene Name:
POLR1B
Uniprot ID:
A6QLS0
Molecular weight:
128397.0
General function:
Nucleotide transport and metabolism
Specific function:
Provides the precursors necessary for DNA synthesis. Catalyzes the biosynthesis of deoxyribonucleotides from the corresponding ribonucleotides.
Gene Name:
RRM1
Uniprot ID:
Q32LP1
Molecular weight:
90019.0
General function:
Transcription
Specific function:
DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
Gene Name:
POLR2B
Uniprot ID:
A5PJW8
Molecular weight:
133867.0
General function:
Transcription
Specific function:
Not Available
Gene Name:
rpB2
Uniprot ID:
B2WTN5
Molecular weight:
5508.0