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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2021-09-14 15:46:09 UTC
HMDB IDHMDB0000884
Secondary Accession Numbers
  • HMDB00884
Metabolite Identification
Common NameRibothymidine
DescriptionRibothymidine is an endogenous methylated nucleoside found in human fluids; methylated purine bases are present in higher amounts in tumor-bearing patients compared to healthy controls.DNA hypermethylation is a common finding in malignant cells and has been explored as a therapeutic target for hypomethylating agents. When chemical bonds to DNA, the DNA becomes damaged and proper and complete replication cannot occur to make the normal intended cell. A DNA adduct is an abnormal piece of DNA covalently-bonded to a cancer-causing chemical. This has shown to be the start of a cancerous cell, or carcinogenesis. DNA adducts in scientific experiments are used as bio-markers and as such are themselves measured to reflect quantitatively, for comparison, the amount of cancer in the subject. (PMID:3506820 , 17044778 , 17264127 , 16799933 ).
Structure
Thumb
Synonyms
Chemical FormulaC10H14N2O6
Average Molecular Weight258.228
Monoisotopic Molecular Weight258.08518619
IUPAC Name1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methyl-1,2,3,4-tetrahydropyrimidine-2,4-dione
Traditional Namethymidin
CAS Registry Number1463-10-1
SMILES
CC1=CN([C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)C(=O)NC1=O
InChI Identifier
InChI=1S/C10H14N2O6/c1-4-2-12(10(17)11-8(4)16)9-7(15)6(14)5(3-13)18-9/h2,5-7,9,13-15H,3H2,1H3,(H,11,16,17)/t5-,6-,7-,9-/m1/s1
InChI KeyDWRXFEITVBNRMK-JXOAFFINSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as pyrimidine nucleosides. Pyrimidine nucleosides are compounds comprising a pyrimidine base attached to a ribosyl or deoxyribosyl moiety.
KingdomOrganic compounds
Super ClassNucleosides, nucleotides, and analogues
ClassPyrimidine nucleosides
Sub ClassNot Available
Direct ParentPyrimidine nucleosides
Alternative Parents
Substituents
  • Pyrimidine nucleoside
  • Glycosyl compound
  • N-glycosyl compound
  • Pentose monosaccharide
  • Pyrimidone
  • Hydropyrimidine
  • Monosaccharide
  • Pyrimidine
  • Vinylogous amide
  • Tetrahydrofuran
  • Heteroaromatic compound
  • Urea
  • Secondary alcohol
  • Lactam
  • Organoheterocyclic compound
  • Oxacycle
  • Azacycle
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Primary alcohol
  • Alcohol
  • Organic oxygen compound
  • Organic oxide
  • Organic nitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point183 - 187 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic Properties

Experimental Collision Cross Sections

Adduct TypeData SourceCCS Value (Å2)Reference
[M-H]-MetCCS_train_neg153.52330932474
[M-H]-Not Available153.523http://allccs.zhulab.cn/database/detail?ID=AllCCS00000108
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Blood
  • Feces
  • Urine
Tissue Locations
  • Placenta
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.200 +/- 0.098 uMAdult (>18 years old)Not SpecifiedNormal
    • Xu, G., Enderle, ...
details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
UrineDetected and Quantified0.28 +/- 0.17 umol/mmol creatinineAdult (>18 years old)FemaleNormal details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothColorectal Cancer details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Colorectal cancer
details
UrineDetected and Quantified0.51 +/- 0.53 umol/mmol creatinineAdult (>18 years old)BothBreast cancer details
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothBladder cancer details
Associated Disorders and Diseases
Disease References
Colorectal cancer
  1. Brown DG, Rao S, Weir TL, O'Malia J, Bazan M, Brown RJ, Ryan EP: Metabolomics and metabolic pathway networks from human colorectal cancers, adjacent mucosa, and stool. Cancer Metab. 2016 Jun 6;4:11. doi: 10.1186/s40170-016-0151-y. eCollection 2016. [PubMed:27275383 ]
  2. Goedert JJ, Sampson JN, Moore SC, Xiao Q, Xiong X, Hayes RB, Ahn J, Shi J, Sinha R: Fecal metabolomics: assay performance and association with colorectal cancer. Carcinogenesis. 2014 Sep;35(9):2089-96. doi: 10.1093/carcin/bgu131. Epub 2014 Jul 18. [PubMed:25037050 ]
Perillyl alcohol administration for cancer treatment
  1. Zheng YF, Kong HW, Xiong JH, Lv S, Xu GW: Clinical significance and prognostic value of urinary nucleosides in breast cancer patients. Clin Biochem. 2005 Jan;38(1):24-30. [PubMed:15607313 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB022298
KNApSAcK IDNot Available
Chemspider ID393058
KEGG Compound IDNot Available
BioCyc IDCPD-15123
BiGG IDNot Available
Wikipedia Link5-methyluridine
METLIN ID5843
PubChem Compound445408
PDB IDNot Available
ChEBI ID45996
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceMaruyama, Shogo; Kumon, Satoru. 5-Methyluridine manufacture with microorganism. Jpn. Kokai Tokkyo Koho (1996), 6 pp.
Material Safety Data Sheet (MSDS)Not Available
General References

Enzymes

General function:
Involved in RNA methyltransferase activity
Specific function:
Probable S-adenosyl-L-methionine-dependent methyltransferase that catalyzes the formation of 5-methyl-uridine at position 54 (m5U54) in all tRNA. May also have a role in tRNA stabilization or maturation (By similarity).
Gene Name:
TRMT2B
Uniprot ID:
Q96GJ1
Molecular weight:
56475.965