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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2021-09-14 15:48:15 UTC
HMDB IDHMDB0000089
Secondary Accession Numbers
  • HMDB00089
Metabolite Identification
Common NameCytidine
DescriptionCytidine is a nucleoside that is composed of the base cytosine linked to the five-carbon sugar D-ribose. Cytidine is a pyrimidine that besides being incorporated into nucleic acids, can serve as a substrate for the salvage pathway of pyrimidine nucleotide synthesis. It is a precursor of cytidine triphosphate (CTP) needed in the phosphatidylcholine (PC) and phosphatidylethanolamine (PE) biosynthetic pathways. These variations probably reflect the species differences in cytidine deaminase, the enzyme that converts cytidine to uridine in the body. The transport of cytidine into the brain's extracellular fluid, and then into neurons and glia, are essential prerequisites for cytidine to be utilized in the brain. An efficient mechanism mediating the brain uptake of circulating cytidine has not yet been demonstrated. The biosynthesis of PC, the most abundant phosphatide in the brain, via the Kennedy pathway requires phosphocholine and cytidine triphosphate (CTP), a cytidine nucleotide involved in the rate-limiting step. The enzyme that converts CTP to endogenous CDP-choline (CTP:phosphocholine cytidylyltransferase) is unsaturated at physiological brain CTP levels. APOBEC is a family of enzymes that has been discovered with the ability to deaminate cytidines on RNA or DNA. The human apolipoprotein B mRNA-editing enzyme, catalytic polypeptide-like 3G protein (APOBEC3G, or hA3G), provides cells with an intracellular antiretroviral activity that is associated with the hypermutation of viral DNA through cytidine deamination. Indeed, hA3G belongs to a family of vertebrate proteins that contains one or two copies of a signature sequence motif unique to cytidine deaminases (CTDAs) (PMID: 16769123 , 15780864 , 16720547 ).
Structure
Thumb
Synonyms
Chemical FormulaC9H13N3O5
Average Molecular Weight243.2166
Monoisotopic Molecular Weight243.085520541
IUPAC Name4-amino-1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2-dihydropyrimidin-2-one
Traditional Namecytidine
CAS Registry Number65-46-3
SMILES
NC1=NC(=O)N(C=C1)[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O
InChI Identifier
InChI=1S/C9H13N3O5/c10-5-1-2-12(9(16)11-5)8-7(15)6(14)4(3-13)17-8/h1-2,4,6-8,13-15H,3H2,(H2,10,11,16)/t4-,6-,7-,8-/m1/s1
InChI KeyUHDGCWIWMRVCDJ-XVFCMESISA-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
  • Aminopyrimidine
  • Pyrimidone
  • Hydropyrimidine
  • Monosaccharide
  • Pyrimidine
  • Imidolactam
  • Tetrahydrofuran
  • Heteroaromatic compound
  • Secondary alcohol
  • Oxacycle
  • Azacycle
  • Organoheterocyclic compound
  • Organic nitrogen compound
  • Primary alcohol
  • Organic oxide
  • Organooxygen compound
  • Organonitrogen compound
  • Amine
  • Alcohol
  • Organopnictogen compound
  • Organic oxygen compound
  • Primary amine
  • Hydrocarbon derivative
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Biological locationSource
Process
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point230.5 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogP-2.51HANSCH,C ET AL. (1995)
Experimental Chromatographic Properties

Experimental Collision Cross Sections

Adduct TypeData SourceCCS Value (Å2)Reference
[M-H]-Astarita_neg145.730932474
[M-H]-MetCCS_test_neg147.430932474
[M+H]+Astarita_pos148.030932474
[M-H]-Not Available149.3http://allccs.zhulab.cn/database/detail?ID=AllCCS00000147
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Extracellular
  • Mitochondria
  • Nucleus
  • Lysosome
Biospecimen Locations
  • Blood
  • Breast Milk
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Tissue Locations
  • All Tissues
  • Placenta
  • Prostate
Pathways
Normal Concentrations
Abnormal Concentrations
Associated Disorders and Diseases
Disease References
Canavan disease
  1. Tavazzi B, Lazzarino G, Leone P, Amorini AM, Bellia F, Janson CG, Di Pietro V, Ceccarelli L, Donzelli S, Francis JS, Giardina B: Simultaneous high performance liquid chromatographic separation of purines, pyrimidines, N-acetylated amino acids, and dicarboxylic acids for the chemical diagnosis of inborn errors of metabolism. Clin Biochem. 2005 Nov;38(11):997-1008. Epub 2005 Sep 1. [PubMed:16139832 ]
Uremia
  1. Vanholder R, De Smet R, Glorieux G, Argiles A, Baurmeister U, Brunet P, Clark W, Cohen G, De Deyn PP, Deppisch R, Descamps-Latscha B, Henle T, Jorres A, Lemke HD, Massy ZA, Passlick-Deetjen J, Rodriguez M, Stegmayr B, Stenvinkel P, Tetta C, Wanner C, Zidek W: Review on uremic toxins: classification, concentration, and interindividual variability. Kidney Int. 2003 May;63(5):1934-43. doi: 10.1046/j.1523-1755.2003.00924.x. [PubMed:12675874 ]
Colorectal cancer
  1. Sinha R, Ahn J, Sampson JN, Shi J, Yu G, Xiong X, Hayes RB, Goedert JJ: Fecal Microbiota, Fecal Metabolome, and Colorectal Cancer Interrelations. PLoS One. 2016 Mar 25;11(3):e0152126. doi: 10.1371/journal.pone.0152126. eCollection 2016. [PubMed:27015276 ]
  2. 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 ]
  3. 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 ]
Crohn's disease
  1. Kolho KL, Pessia A, Jaakkola T, de Vos WM, Velagapudi V: Faecal and Serum Metabolomics in Paediatric Inflammatory Bowel Disease. J Crohns Colitis. 2017 Mar 1;11(3):321-334. doi: 10.1093/ecco-jcc/jjw158. [PubMed:27609529 ]
Ulcerative colitis
  1. Kolho KL, Pessia A, Jaakkola T, de Vos WM, Velagapudi V: Faecal and Serum Metabolomics in Paediatric Inflammatory Bowel Disease. J Crohns Colitis. 2017 Mar 1;11(3):321-334. doi: 10.1093/ecco-jcc/jjw158. [PubMed:27609529 ]
Alzheimer's disease
  1. Tsuruoka M, Hara J, Hirayama A, Sugimoto M, Soga T, Shankle WR, Tomita M: Capillary electrophoresis-mass spectrometry-based metabolome analysis of serum and saliva from neurodegenerative dementia patients. Electrophoresis. 2013 Oct;34(19):2865-72. doi: 10.1002/elps.201300019. Epub 2013 Sep 6. [PubMed:23857558 ]
Frontotemporal dementia
  1. Tsuruoka M, Hara J, Hirayama A, Sugimoto M, Soga T, Shankle WR, Tomita M: Capillary electrophoresis-mass spectrometry-based metabolome analysis of serum and saliva from neurodegenerative dementia patients. Electrophoresis. 2013 Oct;34(19):2865-72. doi: 10.1002/elps.201300019. Epub 2013 Sep 6. [PubMed:23857558 ]
Lewy body disease
  1. Tsuruoka M, Hara J, Hirayama A, Sugimoto M, Soga T, Shankle WR, Tomita M: Capillary electrophoresis-mass spectrometry-based metabolome analysis of serum and saliva from neurodegenerative dementia patients. Electrophoresis. 2013 Oct;34(19):2865-72. doi: 10.1002/elps.201300019. Epub 2013 Sep 6. [PubMed:23857558 ]
Attachment loss
  1. Liebsch C, Pitchika V, Pink C, Samietz S, Kastenmuller G, Artati A, Suhre K, Adamski J, Nauck M, Volzke H, Friedrich N, Kocher T, Holtfreter B, Pietzner M: The Saliva Metabolome in Association to Oral Health Status. J Dent Res. 2019 Jun;98(6):642-651. doi: 10.1177/0022034519842853. Epub 2019 Apr 26. [PubMed:31026179 ]
Missing teeth
  1. Liebsch C, Pitchika V, Pink C, Samietz S, Kastenmuller G, Artati A, Suhre K, Adamski J, Nauck M, Volzke H, Friedrich N, Kocher T, Holtfreter B, Pietzner M: The Saliva Metabolome in Association to Oral Health Status. J Dent Res. 2019 Jun;98(6):642-651. doi: 10.1177/0022034519842853. Epub 2019 Apr 26. [PubMed:31026179 ]
Periodontal Probing Depth
  1. Liebsch C, Pitchika V, Pink C, Samietz S, Kastenmuller G, Artati A, Suhre K, Adamski J, Nauck M, Volzke H, Friedrich N, Kocher T, Holtfreter B, Pietzner M: The Saliva Metabolome in Association to Oral Health Status. J Dent Res. 2019 Jun;98(6):642-651. doi: 10.1177/0022034519842853. Epub 2019 Apr 26. [PubMed:31026179 ]
Associated OMIM IDs
DrugBank IDDB02097
Phenol Explorer Compound IDNot Available
FooDB IDFDB021809
KNApSAcK IDC00042440
Chemspider ID5940
KEGG Compound IDC00475
BioCyc IDCYTIDINE
BiGG ID35089
Wikipedia LinkCytidine
METLIN ID3376
PubChem Compound6175
PDB IDNot Available
ChEBI ID17562
Food Biomarker OntologyNot Available
VMH IDCYTD
MarkerDB IDMDB00000047
Good Scents IDNot Available
References
Synthesis ReferenceQu, Guirong; Yang, Xining; Shen, Yanhong; Dong, Chunhong; Guo, Haiming; Wang, Xiuqiang; Wang, Dongchao. Synthesis of cytidine. Faming Zhuanli Shenqing Gongkai Shuomingshu (2007), 11pp.
Material Safety Data Sheet (MSDS)Not Available
General References

Only showing the first 10 proteins. There are 22 proteins in total.

Enzymes

General function:
Involved in hydrolase activity
Specific function:
Hydrolyzes extracellular nucleotides into membrane permeable nucleosides.
Gene Name:
NT5E
Uniprot ID:
P21589
Molecular weight:
57948.125
Reactions
Cytidine monophosphate + Water → Cytidine + Phosphatedetails
General function:
Involved in nucleotide binding
Specific function:
Dephosphorylates the 5' and 2'(3')-phosphates of deoxyribonucleotides. Helps to regulate adenosine levels (By similarity).
Gene Name:
NT5C1B
Uniprot ID:
Q96P26
Molecular weight:
68803.055
Reactions
Cytidine monophosphate + Water → Cytidine + Phosphatedetails
General function:
Involved in nucleotide binding
Specific function:
Dephosphorylates the 5' and 2'(3')-phosphates of deoxyribonucleotides and has a broad substrate specificity. Helps to regulate adenosine levels in heart during ischemia and hypoxia.
Gene Name:
NT5C1A
Uniprot ID:
Q9BXI3
Molecular weight:
41020.145
Reactions
Cytidine monophosphate + Water → Cytidine + Phosphatedetails
General function:
Involved in metal ion binding
Specific function:
Dephosphorylates the 5' and 2'(3')-phosphates of deoxyribonucleotides, with a preference for dUMP and dTMP, intermediate activity towards dGMP, and low activity towards dCMP and dAMP.
Gene Name:
NT5C
Uniprot ID:
Q8TCD5
Molecular weight:
Not Available
Reactions
Cytidine monophosphate + Water → Cytidine + Phosphatedetails
General function:
Involved in phosphatase activity
Specific function:
Dephosphorylates specifically the 5' and 2'(3')-phosphates of uracil and thymine deoxyribonucleotides, and so protects mitochondrial DNA replication from excess dTTP. Has only marginal activity towards dIMP and dGMP.
Gene Name:
NT5M
Uniprot ID:
Q9NPB1
Molecular weight:
Not Available
Reactions
Cytidine monophosphate + Water → Cytidine + Phosphatedetails
General function:
Involved in ATP binding
Specific function:
Phosphorylates uridine and cytidine to uridine monophosphate and cytidine monophosphate. Does not phosphorylate deoxyribonucleosides or purine ribonucleosides. Can use ATP or GTP as a phosphate donor. Can also phosphorylate cytidine and uridine nucleoside analogs such as 6-azauridine, 5-fluorouridine, 4-thiouridine, 5-bromouridine, N(4)-acetylcytidine, N(4)-benzoylcytidine, 5-fluorocytidine, 2-thiocytidine, 5-methylcytidine, and N(4)-anisoylcytidine.
Gene Name:
UCK1
Uniprot ID:
Q9HA47
Molecular weight:
22760.43
Reactions
Adenosine triphosphate + Cytidine → ADP + Cytidine monophosphatedetails
Uridine triphosphate + Cytidine → Uridine 5'-diphosphate + Cytidine monophosphatedetails
Guanosine triphosphate + Cytidine → Guanosine diphosphate + Cytidine monophosphatedetails
Inosine triphosphate + Cytidine → IDP + Cytidine monophosphatedetails
Deoxyadenosine triphosphate + Cytidine → dADP + Cytidine monophosphatedetails
dGTP + Cytidine → dGDP + Cytidine monophosphatedetails
Thymidine 5'-triphosphate + Cytidine → dTDP + Cytidine monophosphatedetails
dCTP + Cytidine → dCDP + Cytidine monophosphatedetails
Deoxyuridine triphosphate + Cytidine → dUDP + Cytidine monophosphatedetails
General function:
Involved in ATP binding
Specific function:
Regulates and initiates biosynthesis of N-acetylneuraminic acid (NeuAc), a precursor of sialic acids. Plays an essential role in early development (By similarity). Required for normal sialylation in hematopoietic cells. Sialylation is implicated in cell adhesion, signal transduction, tumorigenicity and metastatic behavior of malignant cells.
Gene Name:
GNE
Uniprot ID:
Q9Y223
Molecular weight:
83065.25
General function:
Involved in ATP binding
Specific function:
Phosphorylates uridine and cytidine to uridine monophosphate and cytidine monophosphate. Does not phosphorylate deoxyribonucleosides or purine ribonucleosides. Can use ATP or GTP as a phosphate donor. Can also phosphorylate cytidine and uridine nucleoside analogs such as 6-azauridine, 5-fluorouridine, 4-thiouridine, 5-bromouridine, N(4)-acetylcytidine, N(4)-benzoylcytidine, 5-fluorocytidine, 2-thiocytidine, 5-methylcytidine, and N(4)-anisoylcytidine.
Gene Name:
UCK2
Uniprot ID:
Q9BZX2
Molecular weight:
29298.92
Reactions
Adenosine triphosphate + Cytidine → ADP + Cytidine monophosphatedetails
Uridine triphosphate + Cytidine → Uridine 5'-diphosphate + Cytidine monophosphatedetails
Guanosine triphosphate + Cytidine → Guanosine diphosphate + Cytidine monophosphatedetails
Inosine triphosphate + Cytidine → IDP + Cytidine monophosphatedetails
Deoxyadenosine triphosphate + Cytidine → dADP + Cytidine monophosphatedetails
dGTP + Cytidine → dGDP + Cytidine monophosphatedetails
Thymidine 5'-triphosphate + Cytidine → dTDP + Cytidine monophosphatedetails
dCTP + Cytidine → dCDP + Cytidine monophosphatedetails
Deoxyuridine triphosphate + Cytidine → dUDP + Cytidine monophosphatedetails
General function:
Involved in zinc ion binding
Specific function:
Not Available
Gene Name:
AID
Uniprot ID:
Q546Y9
Molecular weight:
23953.3
General function:
Involved in magnesium ion binding
Specific function:
Can act both as nucleotidase and as phosphotransferase.
Gene Name:
NT5C3
Uniprot ID:
Q9H0P0
Molecular weight:
33914.91
Reactions
Cytidine monophosphate + Water → Cytidine + Phosphatedetails

Only showing the first 10 proteins. There are 22 proteins in total.