Record Information
Version2.0
Creation Date2012-05-31 09:57:04 -0600
Update Date2015-09-13 12:56:06 -0600
Secondary Accession Numbers
  • ECMDB00089
Identification
Name:Cytidine
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 substrate for the salvage pathway of pyrimidine nucleotide synthesis; as precursor of the cytidine triphosphate (CTP) needed in the phosphatidylcholine (PC) and phosphatidylethanolamine (PE) biosynthetic pathway. These variations probably reflect the species differences in cytidine deaminase. The biosynthesis of PC via the Kennedy pathway requires phosphocholine and cytidine triphosphate (CTP), a cytidine nucleotide, which is involved in the rate-limiting step. (PMID: 16769123, 15780864, 16720547)
Structure
Thumb
Synonyms:
  • 1-(b-D-Ribofuranosyl)-2-oxo-4-amino-1,2-dihydro-1,3-diazine
  • 1-(b-delta-Ribofuranosyl)-2-oxo-4-amino-1,2-dihydro-1,3-diazine
  • 1-(b-δ-Ribofuranosyl)-2-oxo-4-amino-1,2-dihydro-1,3-diazine
  • 1-(beta-D-Ribofuranosyl)-2-oxo-4-amino-1,2-dihydro-1,3-diazine
  • 1-(beta-delta-Ribofuranosyl)-2-oxo-4-amino-1,2-dihydro-1,3-diazine
  • 1-(β-D-Ribofuranosyl)-2-oxo-4-amino-1,2-dihydro-1,3-diazine
  • 1-(β-δ-Ribofuranosyl)-2-oxo-4-amino-1,2-dihydro-1,3-diazine
  • 1-b-D-Ribofuranosyl-cytosine
  • 1-b-D-Ribofuranosylcytosine
  • 1-b-D-ribosyl-Cytosine
  • 1-b-delta-Ribofuranosyl-cytosine
  • 1-b-delta-Ribofuranosylcytosine
  • 1-b-delta-Ribosyl-cytosine
  • 1-b-δ-Ribofuranosyl-cytosine
  • 1-b-δ-Ribofuranosylcytosine
  • 1-b-δ-Ribosyl-cytosine
  • 1-beta-D-Ribofuranosyl-Cytosine
  • 1-beta-D-Ribofuranosylcytosine
  • 1-beta-D-Ribosyl-Cytosine
  • 1-beta-delta-Ribofuranosyl-Cytosine
  • 1-beta-delta-Ribofuranosylcytosine
  • 1-beta-delta-Ribosyl-Cytosine
  • 1-β-D-Ribofuranosyl-cytosine
  • 1-β-D-Ribofuranosylcytosine
  • 1-β-D-Ribosyl-cytosine
  • 1-β-δ-Ribofuranosyl-cytosine
  • 1-β-δ-Ribofuranosylcytosine
  • 1-β-δ-Ribosyl-cytosine
  • 1b-D-Ribofuranosylcytosine
  • 1b-delta-Ribofuranosylcytosine
  • 1b-Ribofuranosylcytosine
  • 1b-δ-Ribofuranosylcytosine
  • 1beta-D-Ribofuranosylcytosine
  • 1beta-delta-Ribofuranosylcytosine
  • 1beta-Ribofuranosylcytosine
  • 1β-D-Ribofuranosylcytosine
  • 1β-Ribofuranosylcytosine
  • 1β-δ-Ribofuranosylcytosine
  • 4-Amino-1-b-D-ribofuranosyl-2(1H)-pyrimidinone
  • 4-amino-1-b-delta-Ribofuranosyl-2(1H)-pyrimidinone
  • 4-amino-1-b-δ-Ribofuranosyl-2(1H)-pyrimidinone
  • 4-Amino-1-beta-delta-ribofuranosyl-2(1H)-pyrimidinone
  • 4-amino-1-β-δ-Ribofuranosyl-2(1H)-pyrimidinone
  • Cytidine
  • Cytosine riboside
  • Cytosine-1b-D-Ribofuranoside
  • Cytosine-1b-delta-Ribofuranoside
  • Cytosine-1b-δ-ribofuranoside
  • Cytosine-1beta-D-Ribofuranoside
  • Cytosine-1beta-delta-Ribofuranoside
  • Cytosine-1β-D-ribofuranoside
  • Cytosine-1β-δ-ribofuranoside
Chemical Formula:C9H13N3O5
Weight:Average: 243.2166
Monoisotopic: 243.085520541
InChI Key:UHDGCWIWMRVCDJ-XVFCMESISA-N
InChI: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
CAS number:65-46-3
IUPAC Name:4-amino-1-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2-dihydropyrimidin-2-one
Traditional IUPAC Name:cytarabine
SMILES:NC1=NC(=O)N(C=C1)[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O
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
Physical Properties
State:Solid
Charge:0
Melting point:230.5 °C
Experimental Properties:
PropertyValueSource
LogP:-2.51 [HANSCH,C ET AL. (1995)]PhysProp
Predicted Properties
PropertyValueSource
Water Solubility43.8 g/LALOGPS
logP-2.2ALOGPS
logP-2.8ChemAxon
logS-0.74ALOGPS
pKa (Strongest Acidic)12.55ChemAxon
pKa (Strongest Basic)-0.062ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area128.61 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity54.54 m³·mol⁻¹ChemAxon
Polarizability22.53 ųChemAxon
Number of Rings2ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations:Cytoplasm
Reactions:
SMPDB Pathways:
Pyrimidine metabolismPW000942 ThumbThumb?image type=greyscaleThumb?image type=simple
Pyrimidine ribonucleosides degradtionPW002024 ThumbThumb?image type=greyscaleThumb?image type=simple
pyrimidine ribonucleosides degradationPW002104 ThumbThumb?image type=greyscaleThumb?image type=simple
KEGG Pathways:
EcoCyc Pathways:
  • pyrimidine ribonucleosides degradation I PWY0-1295
  • salvage pathways of pyrimidine ribonucleotides PWY0-163
Concentrations
ConcentrationStrainMediaGrowth StatusGrowth SystemTemperatureDetails
3± 0 uMK12 NCM3722Gutnick minimal complete medium (4.7 g/L KH2PO4; 13.5 g/L K2HPO4; 1 g/L K2SO4; 0.1 g/L MgSO4-7H2O; 10 mM NH4Cl) with 4 g/L glucoseMid-Log PhaseShake flask and filter culture37 oCPMID: 19561621
Find out more about how we convert literature concentrations.
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-MS (5 TMS)splash10-0zfr-2951000000-7baf0e1ea8b1a34362e2View in MoNA
GC-MSGC-MS Spectrum - GC-MS (4 TMS)splash10-0g4j-2980000000-9337623aef7fec22dd97View in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0zfr-2951000000-7baf0e1ea8b1a34362e2View in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0g4j-2980000000-9337623aef7fec22dd97View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-08ml-9320000000-b032ad2c3dbed3face55View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (3 TMS) - 70eV, Positivesplash10-0fuu-3934200000-7c3baaaffddf6aacd0f3View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0006-0190000000-eff861edb69ddab2c195View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0a4i-0900000000-4b5b14f0a5467db173b6View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0a4i-3900000000-d85ae6c771dd9206c4c2View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-06sl-9600000000-b154ca170372bcbf8a4aView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-00lu-9200000000-840df44a2d1149f4a7f7View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-01ox-0790000000-270551529aa609aa9ce8View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-03di-0900000000-855a7f8775ed4351b290View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-03di-0900000000-50671582f88f6b4d8ceeView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-03di-1900000000-54269291900f80d353c3View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-03di-7900000000-ae3ff52581cbe6141064View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-IT , positivesplash10-03di-0900000000-9f3ae8e87da22e4e2e82View in MoNA
LC-MS/MSLC-MS/MS Spectrum - 35V, Negativesplash10-0btc-3910000000-0c7172b1308a7ac699d4View in MoNA
LC-MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-03di-0900000000-204e273853aa2d8e09abView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-0910000000-9575881412c4c94a7eaeView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03di-5900000000-2cb5f7e3dbd7baa35b56View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-03dj-9600000000-7d281b2b2d57c8786e11View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-01ox-0960000000-db9207082a1fabf42daeView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-03xs-4910000000-c89de30dd376cbcb3b66View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00kf-9200000000-5715839499753b91f845View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-0900000000-61fe3ac4032a2baf1b89View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03di-2900000000-230b224d4d0dd71d0a49View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-02t9-9200000000-7262e80c4fe078b890fcView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03di-2900000000-66dec45988a096cc3483View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-01ox-9500000000-bc463e76fd8ac42ac1d0View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9100000000-98e1626c7f485521a57fView in MoNA
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
2D NMR[1H,1H] 2D NMR SpectrumNot AvailableView in JSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableView in JSpectraViewer
References
References:
  • Barbour JD, Grant RM: The role of viral fitness in HIV pathogenesis. Curr HIV/AIDS Rep. 2005 Feb;2(1):29-34. Pubmed: 16091246
  • Bennett, B. D., Kimball, E. H., Gao, M., Osterhout, R., Van Dien, S. J., Rabinowitz, J. D. (2009). "Absolute metabolite concentrations and implied enzyme active site occupancy in Escherichia coli." Nat Chem Biol 5:593-599. Pubmed: 19561621
  • Cansev, M. (2006). "Uridine and cytidine in the brain: their transport and utilization." Brain Res Rev 52:389-397. Pubmed: 16769123
  • Eells JT, Spector R: Purine and pyrimidine base and nucleoside concentrations in human cerebrospinal fluid and plasma. Neurochem Res. 1983 Nov;8(11):1451-7. Pubmed: 6656991
  • Huthoff H, Malim MH: Cytidine deamination and resistance to retroviral infection: towards a structural understanding of the APOBEC proteins. Virology. 2005 Apr 10;334(2):147-53. Pubmed: 15780864
  • Kanehisa, M., Goto, S., Sato, Y., Furumichi, M., Tanabe, M. (2012). "KEGG for integration and interpretation of large-scale molecular data sets." Nucleic Acids Res 40:D109-D114. Pubmed: 22080510
  • Keseler, I. M., Collado-Vides, J., Santos-Zavaleta, A., Peralta-Gil, M., Gama-Castro, S., Muniz-Rascado, L., Bonavides-Martinez, C., Paley, S., Krummenacker, M., Altman, T., Kaipa, P., Spaulding, A., Pacheco, J., Latendresse, M., Fulcher, C., Sarker, M., Shearer, A. G., Mackie, A., Paulsen, I., Gunsalus, R. P., Karp, P. D. (2011). "EcoCyc: a comprehensive database of Escherichia coli biology." Nucleic Acids Res 39:D583-D590. Pubmed: 21097882
  • Lee SH, Jung BH, Kim SY, Chung BC: A rapid and sensitive method for quantitation of nucleosides in human urine using liquid chromatography/mass spectrometry with direct urine injection. Rapid Commun Mass Spectrom. 2004;18(9):973-7. Pubmed: 15116424
  • Mahieux R, Suspene R, Delebecque F, Henry M, Schwartz O, Wain-Hobson S, Vartanian JP: Extensive editing of a small fraction of human T-cell leukemia virus type 1 genomes by four APOBEC3 cytidine deaminases. J Gen Virol. 2005 Sep;86(Pt 9):2489-94. Pubmed: 16099907
  • Min IM, Selsing E: Antibody class switch recombination: roles for switch sequences and mismatch repair proteins. Adv Immunol. 2005;87:297-328. Pubmed: 16102577
  • Navaratnam N, Sarwar R: An overview of cytidine deaminases. Int J Hematol. 2006 Apr;83(3):195-200. Pubmed: 16720547
  • Schrofelbauer B, Yu Q, Zeitlin SG, Landau NR: Human immunodeficiency virus type 1 Vpr induces the degradation of the UNG and SMUG uracil-DNA glycosylases. J Virol. 2005 Sep;79(17):10978-87. Pubmed: 16103149
  • Sreekumar A, Poisson LM, Rajendiran TM, Khan AP, Cao Q, Yu J, Laxman B, Mehra R, Lonigro RJ, Li Y, Nyati MK, Ahsan A, Kalyana-Sundaram S, Han B, Cao X, Byun J, Omenn GS, Ghosh D, Pennathur S, Alexander DC, Berger A, Shuster JR, Wei JT, Varambally S, Beecher C, Chinnaiyan AM: Metabolomic profiles delineate potential role for sarcosine in prostate cancer progression. Nature. 2009 Feb 12;457(7231):910-4. Pubmed: 19212411
  • van der Werf, M. J., Overkamp, K. M., Muilwijk, B., Coulier, L., Hankemeier, T. (2007). "Microbial metabolomics: toward a platform with full metabolome coverage." Anal Biochem 370:17-25. Pubmed: 17765195
  • Winder, C. L., Dunn, W. B., Schuler, S., Broadhurst, D., Jarvis, R., Stephens, G. M., Goodacre, R. (2008). "Global metabolic profiling of Escherichia coli cultures: an evaluation of methods for quenching and extraction of intracellular metabolites." Anal Chem 80:2939-2948. Pubmed: 18331064
  • Zhong SQ, Sun LJ, Yan YZ, Sun YQ, Zhong YY: Effect of Xuesaitong soft capsule on hemorrheology and in auxiliarily treating patients with acute cerebral infarction. Chin J Integr Med. 2005 Jun;11(2):128-31. Pubmed: 16150200
Synthesis Reference:Qu, 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)Download (PDF)
External Links:
ResourceLink
CHEBI ID17562
HMDB IDHMDB00089
Pubchem Compound ID6175
Kegg IDC00475
ChemSpider ID5940
WikipediaCytidine
BioCyc IDCYTIDINE
EcoCyc IDCYTIDINE
Ligand ExpoCTN

Enzymes

General function:
Involved in hydrolase activity
Specific function:
Degradation of external UDP-glucose to uridine monophosphate and glucose-1-phosphate, which can then be used by the cell
Gene Name:
ushA
Uniprot ID:
P07024
Molecular weight:
60824
Reactions
UDP-sugar + H(2)O = UMP + alpha-D-aldose 1-phosphate.
A 5'-ribonucleotide + H(2)O = a ribonucleoside + phosphate.
General function:
Involved in hydrolase activity
Specific function:
This bifunctional enzyme catalyzes two consecutive reactions during ribonucleic acid degradation. Converts a 2',3'- cyclic nucleotide to a 3'-nucleotide and then the 3'-nucleotide to the corresponding nucleoside and phosphate
Gene Name:
cpdB
Uniprot ID:
P08331
Molecular weight:
70832
Reactions
Nucleoside 2',3'-cyclic phosphate + H(2)O = nucleoside 3'-phosphate.
A 3'-ribonucleotide + H(2)O = a ribonucleoside + phosphate.
General function:
Involved in hydrolase activity
Specific function:
Nucleotidase with a broad substrate specificity as it can dephosphorylate various ribo- and deoxyribonucleoside 5'- monophosphates and ribonucleoside 3'-monophosphates with highest affinity to 3'-AMP. Also hydrolyzes polyphosphate (exopolyphosphatase activity) with the preference for short-chain- length substrates (P20-25). Might be involved in the regulation of dNTP and NTP pools, and in the turnover of 3'-mononucleotides produced by numerous intracellular RNases (T1, T2, and F) during the degradation of various RNAs. Also plays a significant physiological role in stress-response and is required for the survival of E.coli in stationary growth phase
Gene Name:
surE
Uniprot ID:
P0A840
Molecular weight:
26900
Reactions
A 5'-ribonucleotide + H(2)O = a ribonucleoside + phosphate.
A 3'-ribonucleotide + H(2)O = a ribonucleoside + phosphate.
(Polyphosphate)(n) + H(2)O = (polyphosphate)(n-1) + phosphate.
General function:
Involved in ATP binding
Specific function:
ATP + uridine = ADP + UMP
Gene Name:
udk
Uniprot ID:
P0A8F4
Molecular weight:
24353
Reactions
ATP + uridine = ADP + UMP.
ATP + cytidine = ADP + CMP.
General function:
Involved in catalytic activity
Specific function:
Nucleotidase that shows high phosphatase activity toward three nucleoside 5'-monophosphates, UMP, dUMP, and dTMP, and very low activity against TDP, IMP, UDP, GMP, dGMP, AMP, dAMP, and 6- phosphogluconate. Is strictly specific to substrates with 5'- phosphates and shows no activity against nucleoside 2'- or 3'- monophosphates. Might be involved in the pyrimidine nucleotide substrate cycles
Gene Name:
yjjG
Uniprot ID:
P0A8Y1
Molecular weight:
25300
Reactions
A 5'-ribonucleotide + H(2)O = a ribonucleoside + phosphate.
General function:
Involved in zinc ion binding
Specific function:
This enzyme scavenge exogenous and endogenous cytidine and 2'-deoxycytidine for UMP synthesis
Gene Name:
cdd
Uniprot ID:
P0ABF6
Molecular weight:
31539
Reactions
Cytidine + H(2)O = uridine + NH(3).
General function:
Involved in acid phosphatase activity
Specific function:
Dephosphorylates several organic phosphomonoesters and catalyzes the transfer of low-energy phosphate groups from phosphomonoesters to hydroxyl groups of various organic compounds. Preferentially acts on aryl phosphoesters. Might function as a broad-spectrum dephosphorylating enzyme able to scavenge both 3'- and 5'-nucleotides and also additional organic phosphomonoesters
Gene Name:
aphA
Uniprot ID:
P0AE22
Molecular weight:
26103
Reactions
A phosphate monoester + H(2)O = an alcohol + phosphate.
General function:
Involved in hydrolase activity, hydrolyzing N-glycosyl compounds
Specific function:
Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity with decreasing activity in the order uridine, xanthosine, inosine, adenosine, cytidine, guanosine
Gene Name:
rihC
Uniprot ID:
P22564
Molecular weight:
32560
General function:
Involved in hydrolase activity, hydrolyzing N-glycosyl compounds
Specific function:
Hydrolyzes cytidine or uridine to ribose and cytosine or uracil, respectively. Has a clear preference for cytidine over uridine. Strictly specific for ribonucleosides. Has a low but significant activity for the purine nucleoside xanthosine
Gene Name:
rihB
Uniprot ID:
P33022
Molecular weight:
33748
Reactions
A pyrimidine nucleoside + H(2)O = D-ribose + a pyrimidine base.
General function:
Involved in catalytic activity
Specific function:
Nucleotidase that shows strict specificity toward deoxyribonucleoside 5'-monophosphates and does not dephosphorylate 5'-ribonucleotides or ribonucleoside 3'-monophosphates. Might be involved in the regulation of all dNTP pools in E.coli
Gene Name:
yfbR
Uniprot ID:
P76491
Molecular weight:
22708
Reactions
A 5'-ribonucleotide + H(2)O = a ribonucleoside + phosphate.
General function:
Involved in hydrolase activity, hydrolyzing N-glycosyl compounds
Specific function:
Hydrolyzes with equal efficiency cytidine or uridine to ribose and cytosine or uracil, respectively
Gene Name:
rihA
Uniprot ID:
P41409
Molecular weight:
33823

Transporters

General function:
Involved in nucleoside transmembrane transporter activity
Specific function:
Nucleoside transport
Gene Name:
xapB
Uniprot ID:
P45562
Molecular weight:
46139
General function:
Involved in nucleoside:sodium symporter activity
Specific function:
Transports nucleosides with a high affinity except guanosine and deoxyguanosine. Driven by a proton motive force
Gene Name:
nupC
Uniprot ID:
P0AFF2
Molecular weight:
43475
General function:
Involved in nucleoside transmembrane transporter activity
Specific function:
Transports nucleosides with a high affinity. Driven by a proton motive force
Gene Name:
nupG
Uniprot ID:
P0AFF4
Molecular weight:
46389
General function:
Involved in nucleoside:sodium symporter activity
Specific function:
Nucleoside transporter
Gene Name:
nupX
Uniprot ID:
P33021
Molecular weight:
43409
General function:
Involved in transporter activity
Specific function:
Non-specific porin
Gene Name:
ompN
Uniprot ID:
P77747
Molecular weight:
41220
General function:
Involved in transporter activity
Specific function:
Uptake of inorganic phosphate, phosphorylated compounds, and some other negatively charged solutes
Gene Name:
phoE
Uniprot ID:
P02932
Molecular weight:
38922
General function:
Involved in transporter activity
Specific function:
OmpF is a porin that forms passive diffusion pores which allow small molecular weight hydrophilic materials across the outer membrane. It is also a receptor for the bacteriophage T2
Gene Name:
ompF
Uniprot ID:
P02931
Molecular weight:
39333
General function:
Involved in transporter activity
Specific function:
Forms passive diffusion pores which allow small molecular weight hydrophilic materials across the outer membrane
Gene Name:
ompC
Uniprot ID:
P06996
Molecular weight:
40368