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Record Information
Version1.0
Created at2005-11-16 15:48:42 UTC
Updated at2021-07-01 14:27:36 UTC
NP-MRD IDNP0001433
Secondary Accession NumbersNone
Natural Product Identification
Common NameXanthosine
DescriptionXanthosine, also known as xanthine riboside, 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. Xanthosine is a nucleoside derived from xanthine and ribose. Xanthosine exists in all living species, ranging from bacteria to plants to humans. In plants xanthosine is the biosynthetic precursor to 7-methylxanthosine which is produced by the action of the enzyme known as 7-methylxanthosine synthase. 7-Methylxanthosine in turn is the precursor to theobromine (the active alkaloid in chocolate), which in turn is the precursor to caffeine, the active alkaloid in coffee and tea. Within humans, xanthosine participates in a number of enzymatic reactions. In particular, xanthosine can be biosynthesized from xanthylic acid; which is catalyzed by the enzyme cytosolic purine 5'-nucleotidase. In addition, xanthosine can be converted into xanthine and ribose 1-phosphate; which is mediated by the enzyme purine nucleoside phosphorylase. Xanthosine monophosphate (XMP) is an intermediate in purine metabolism, formed from IMP (inosine monophosphate).
Structure
Thumb
Synonyms
ValueSource
9-beta-D-Ribofuranosyl-3,9-dihydro-1H-purine-2,6-dioneChEBI
9-beta-D-RibofuranosylxanthineChEBI
Xanthine 9-beta-D-ribofuranosideChEBI
Xanthine ribosideChEBI
9-b-D-Ribofuranosyl-3,9-dihydro-1H-purine-2,6-dioneGenerator
9-Β-D-ribofuranosyl-3,9-dihydro-1H-purine-2,6-dioneGenerator
9-b-D-RibofuranosylxanthineGenerator
9-Β-D-ribofuranosylxanthineGenerator
Xanthine 9-b-D-ribofuranosideGenerator
Xanthine 9-β-D-ribofuranosideGenerator
3,9-dihydro-9-b-D-Ribofuranosyl-1H-purine-2,6-dioneHMDB
3,9-dihydro-9-beta-delta-Ribofuranosyl-1H-purine-2,6-dioneHMDB
3,9-dihydro-9-D-Ribofuranosyl-1H-purine-2,6-dioneHMDB
3,9-dihydro-9-delta-Ribofuranosyl-1H-purine-2,6-dioneHMDB
9-beta-delta-RibofuranosylxanthineHMDB
9-D-RibofuranosylxanthineHMDB
9-delta-RibofuranosylxanthineHMDB
9 beta-D-RibofuranosylxanthineMeSH, HMDB
Chemical FormulaC10H12N4O6
Average Mass284.2255 Da
Monoisotopic Mass284.07568 Da
IUPAC Name9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-9H-purine-2,6-diol
Traditional Name9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]purine-2,6-diol
CAS Registry Number146-80-5
SMILES
OC[C@H]1O[C@H]([C@H](O)[C@@H]1O)N1C=NC2=C1N=C(O)N=C2O
InChI Identifier
InChI=1S/C10H12N4O6/c15-1-3-5(16)6(17)9(20-3)14-2-11-4-7(14)12-10(19)13-8(4)18/h2-3,5-6,9,15-17H,1H2,(H2,12,13,18,19)/t3-,5-,6-,9-/m1/s1
InChI KeyUBORTCNDUKBEOP-UUOKFMHZSA-N
Spectra
Spectrum TypeDescriptionDepositor IDDeposition DateView
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Wishart Lab2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, D2O, experimental)Wishart Lab2021-06-20View Spectrum
2D NMR[1H, 1H] 2D NMR Spectrum (experimental)Wishart Lab2021-06-20View Spectrum
2D NMR[1H, 13C] NMR Spectrum (2D, 600 MHz, H2O, experimental)Wishart Lab2021-06-20View Spectrum
Species
Species of Origin
Species NameSourceReference
Camellia assamicaKNApSAcK Database
Camellia irrawadiensisiaKNApSAcK Database
Camellia kissiKNApSAcK Database
Camellia ptilophyllaKNApSAcK Database
Camellia sinensisKNApSAcK Database
Camellia taliensisKNApSAcK Database
Camellia toliensisKNApSAcK Database
Citrus maximaKNApSAcK Database
Coffea arabicaKNApSAcK Database
Coffea canephoraKNApSAcK Database
Coffea dewevreiKNApSAcK Database
Coffea eugeniodesKNApSAcK Database
Coffea kianjavatensisKNApSAcK Database
Coffea libericaKNApSAcK Database
Coffea racemosaKNApSAcK Database
Coffea salvatrixKNApSAcK Database
Cola sp.KNApSAcK Database
Ilex paraguariensisKNApSAcK Database
Paullinia cupanaKNApSAcK Database
Theobroma cacaoKNApSAcK Database
Theobroma grandiflorumKNApSAcK Database
Triticum aestivumKNApSAcK Database
Species Where Detected
Species NameSourceReference
Escherichia coliKNApSAcK Database
Chemical Taxonomy
ClassificationNot classified
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility27.8 g/LALOGPS
logP-1.6ALOGPS
logP-1.2ChemAxon
logS-1ALOGPS
pKa (Strongest Acidic)11.33ChemAxon
pKa (Strongest Basic)0.078ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count9ChemAxon
Hydrogen Donor Count5ChemAxon
Polar Surface Area153.98 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity62.4 m³·mol⁻¹ChemAxon
Polarizability25.55 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
External Links
HMDB IDHMDB0000299
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDC00007222
Chemspider ID58484
KEGG Compound IDC01762
BioCyc IDXANTHOSINE
BiGG IDNot Available
Wikipedia LinkXanthosine
METLIN IDNot Available
PubChem Compound64959
PDB IDNot Available
ChEBI ID18107
Good Scents IDNot Available
References
General References
  1. Marti R, Nishigaki Y, Hirano M: Elevated plasma deoxyuridine in patients with thymidine phosphorylase deficiency. Biochem Biophys Res Commun. 2003 Mar 28;303(1):14-8. [PubMed:12646159 ]
  2. Dudley E, Lemiere F, Van Dongen W, Tuytten R, El-Sharkawi S, Brenton AG, Esmans EL, Newton RP: Analysis of urinary nucleosides. IV. Identification of urinary purine nucleosides by liquid chromatography/electrospray mass spectrometry. Rapid Commun Mass Spectrom. 2004;18(22):2730-8. [PubMed:15499664 ]
  3. Liebich HM, Di Stefano C, Wixforth A, Schmid HR: Quantitation of urinary nucleosides by high-performance liquid chromatography. J Chromatogr A. 1997 Feb 28;763(1-2):193-7. [PubMed:9129323 ]
  4. Khalil PN, Erb N, Khalil MN, Escherich G, Janka-Schaub GE: Validation and application of a high-performance liquid chromatographic-based assay for determination of the inosine 5'-monophosphate dehydrogenase activity in erythrocytes. J Chromatogr B Analyt Technol Biomed Life Sci. 2006 Sep 14;842(1):1-7. Epub 2006 May 24. [PubMed:16725387 ]
  5. Elshenawy S, Pinney SE, Stuart T, Doulias PT, Zura G, Parry S, Elovitz MA, Bennett MJ, Bansal A, Strauss JF 3rd, Ischiropoulos H, Simmons RA: The Metabolomic Signature of the Placenta in Spontaneous Preterm Birth. Int J Mol Sci. 2020 Feb 4;21(3). pii: ijms21031043. doi: 10.3390/ijms21031043. [PubMed:32033212 ]