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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2006-05-22 15:12:47 UTC
Update Date2023-02-21 17:16:35 UTC
HMDB IDHMDB0003282
Secondary Accession Numbers
  • HMDB03282
Metabolite Identification
Common Name1-Methylguanine
Description1-Methylguanine is a naturally occurring modified purine derived from tRNA, found in elevated levels in the serum and urine of cancer patients (PMID:2413515 ). Increase of 1-methylguanine in the urine of colorectal tumor bearing patients, has been justified either by a more rapid turnover of nucleic acids in tumor tissue or by an increase in the extent of their methylation (PMID:9069642 ).
Structure
Data?1676999795
Synonyms
ValueSource
N1-MethylguanineChEBI
1-Methyl-(8ci)-guanineHMDB
1-Methyl-guanineHMDB
RRNA containing N1-methylguanineHMDB
Chemical FormulaC6H7N5O
Average Molecular Weight165.1527
Monoisotopic Molecular Weight165.065059871
IUPAC Name2-amino-1-methyl-6,7-dihydro-1H-purin-6-one
Traditional Name2-amino-1-methyl-7H-purin-6-one
CAS Registry Number938-85-2
SMILES
CN1C(N)=NC2=C(NC=N2)C1=O
InChI Identifier
InChI=1S/C6H7N5O/c1-11-5(12)3-4(9-2-8-3)10-6(11)7/h2H,1H3,(H2,7,10)(H,8,9)
InChI KeyRFLVMTUMFYRZCB-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 6-oxopurines. These are purines that carry a C=O group at position 6. Purine is a bicyclic aromatic compound made up of a pyrimidine ring fused to an imidazole ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassImidazopyrimidines
Sub ClassPurines and purine derivatives
Direct Parent6-oxopurines
Alternative Parents
Substituents
  • 6-oxopurine
  • Pyrimidone
  • Pyrimidine
  • Azole
  • Imidazole
  • Heteroaromatic compound
  • Vinylogous amide
  • Lactam
  • Azacycle
  • Hydrocarbon derivative
  • Organic oxide
  • Organooxygen compound
  • Organonitrogen compound
  • Organic nitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility64310 mg/L @ 25 °C (est)The Good Scents Company Information System
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility5.94 g/LALOGPS
logP-0.88ALOGPS
logP-0.88ChemAxon
logS-1.4ALOGPS
pKa (Strongest Acidic)8.26ChemAxon
pKa (Strongest Basic)0.28ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area87.37 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity44.23 m³·mol⁻¹ChemAxon
Polarizability15.36 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+136.68631661259
DarkChem[M-H]-133.60731661259
DeepCCS[M+H]+128.830932474
DeepCCS[M-H]-125.59730932474
DeepCCS[M-2H]-162.6730932474
DeepCCS[M+Na]+138.10930932474
AllCCS[M+H]+135.632859911
AllCCS[M+H-H2O]+131.132859911
AllCCS[M+NH4]+139.732859911
AllCCS[M+Na]+140.932859911
AllCCS[M-H]-131.332859911
AllCCS[M+Na-2H]-132.032859911
AllCCS[M+HCOO]-132.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
1-MethylguanineCN1C(N)=NC2=C(NC=N2)C1=O2748.5Standard polar33892256
1-MethylguanineCN1C(N)=NC2=C(NC=N2)C1=O2050.7Standard non polar33892256
1-MethylguanineCN1C(N)=NC2=C(NC=N2)C1=O2295.0Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
1-Methylguanine,1TMS,isomer #1CN1C(N[Si](C)(C)C)=NC2=C([NH]C=N2)C1=O2095.8Semi standard non polar33892256
1-Methylguanine,1TMS,isomer #1CN1C(N[Si](C)(C)C)=NC2=C([NH]C=N2)C1=O2215.5Standard non polar33892256
1-Methylguanine,1TMS,isomer #1CN1C(N[Si](C)(C)C)=NC2=C([NH]C=N2)C1=O3181.1Standard polar33892256
1-Methylguanine,1TMS,isomer #2CN1C(N)=NC2=C(C1=O)N([Si](C)(C)C)C=N22056.0Semi standard non polar33892256
1-Methylguanine,1TMS,isomer #2CN1C(N)=NC2=C(C1=O)N([Si](C)(C)C)C=N22144.9Standard non polar33892256
1-Methylguanine,1TMS,isomer #2CN1C(N)=NC2=C(C1=O)N([Si](C)(C)C)C=N23008.1Standard polar33892256
1-Methylguanine,2TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC2=C([NH]C=N2)C1=O2013.6Semi standard non polar33892256
1-Methylguanine,2TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC2=C([NH]C=N2)C1=O2214.0Standard non polar33892256
1-Methylguanine,2TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC2=C([NH]C=N2)C1=O2909.2Standard polar33892256
1-Methylguanine,2TMS,isomer #2CN1C(N[Si](C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C)C=N22115.5Semi standard non polar33892256
1-Methylguanine,2TMS,isomer #2CN1C(N[Si](C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C)C=N22118.0Standard non polar33892256
1-Methylguanine,2TMS,isomer #2CN1C(N[Si](C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C)C=N22775.2Standard polar33892256
1-Methylguanine,3TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C)C=N22086.6Semi standard non polar33892256
1-Methylguanine,3TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C)C=N22190.8Standard non polar33892256
1-Methylguanine,3TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C)C=N22490.4Standard polar33892256
1-Methylguanine,1TBDMS,isomer #1CN1C(N[Si](C)(C)C(C)(C)C)=NC2=C([NH]C=N2)C1=O2318.6Semi standard non polar33892256
1-Methylguanine,1TBDMS,isomer #1CN1C(N[Si](C)(C)C(C)(C)C)=NC2=C([NH]C=N2)C1=O2380.5Standard non polar33892256
1-Methylguanine,1TBDMS,isomer #1CN1C(N[Si](C)(C)C(C)(C)C)=NC2=C([NH]C=N2)C1=O3189.3Standard polar33892256
1-Methylguanine,1TBDMS,isomer #2CN1C(N)=NC2=C(C1=O)N([Si](C)(C)C(C)(C)C)C=N22339.1Semi standard non polar33892256
1-Methylguanine,1TBDMS,isomer #2CN1C(N)=NC2=C(C1=O)N([Si](C)(C)C(C)(C)C)C=N22309.6Standard non polar33892256
1-Methylguanine,1TBDMS,isomer #2CN1C(N)=NC2=C(C1=O)N([Si](C)(C)C(C)(C)C)C=N23078.3Standard polar33892256
1-Methylguanine,2TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC2=C([NH]C=N2)C1=O2412.9Semi standard non polar33892256
1-Methylguanine,2TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC2=C([NH]C=N2)C1=O2629.3Standard non polar33892256
1-Methylguanine,2TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC2=C([NH]C=N2)C1=O2902.7Standard polar33892256
1-Methylguanine,2TBDMS,isomer #2CN1C(N[Si](C)(C)C(C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C(C)(C)C)C=N22552.4Semi standard non polar33892256
1-Methylguanine,2TBDMS,isomer #2CN1C(N[Si](C)(C)C(C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C(C)(C)C)C=N22514.7Standard non polar33892256
1-Methylguanine,2TBDMS,isomer #2CN1C(N[Si](C)(C)C(C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C(C)(C)C)C=N22831.5Standard polar33892256
1-Methylguanine,3TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C(C)(C)C)C=N22689.3Semi standard non polar33892256
1-Methylguanine,3TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C(C)(C)C)C=N22829.9Standard non polar33892256
1-Methylguanine,3TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC2=C(C1=O)N([Si](C)(C)C(C)(C)C)C=N22694.2Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 1-Methylguanine GC-MS (Non-derivatized) - 70eV, Positivesplash10-00kr-1900000000-45dafb47231261a33e342017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 1-Methylguanine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - 1-Methylguanine Quattro_QQQ 10V, Positive-QTOF (Annotated)splash10-014i-0900000000-e0f3b732f335f66f72192012-07-25HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 1-Methylguanine Quattro_QQQ 25V, Positive-QTOF (Annotated)splash10-001j-1900000000-b84f791d4a4bc81513282012-07-25HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 1-Methylguanine Quattro_QQQ 40V, Positive-QTOF (Annotated)splash10-016r-9000000000-50d063af89477717240c2012-07-25HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 10V, Negative-QTOFsplash10-03di-0900000000-5e14e1adacea2bac46772017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 20V, Negative-QTOFsplash10-03di-0900000000-62ed5e872e13f95fff3c2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 40V, Negative-QTOFsplash10-066u-9100000000-a6303b778bf2e82121732017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 10V, Negative-QTOFsplash10-03di-0900000000-11e5406fb2e0acd600c02021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 20V, Negative-QTOFsplash10-0a4i-3900000000-d42166d37275a2e5655b2021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 40V, Negative-QTOFsplash10-014i-9200000000-3c1e78a8e0f4457f1b8b2021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 10V, Positive-QTOFsplash10-014i-0900000000-b4eedcd30b62cd8b922a2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 20V, Positive-QTOFsplash10-014i-0900000000-78d5a20571bea640c96d2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 40V, Positive-QTOFsplash10-053u-9100000000-62d84fcae8d967f0c60c2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 10V, Positive-QTOFsplash10-014i-0900000000-7f20cf9333bbb1eb98e12021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 20V, Positive-QTOFsplash10-014i-0900000000-deea321d76dc8808ec212021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1-Methylguanine 40V, Positive-QTOFsplash10-05o0-9300000000-f70bf250b22aa781870f2021-09-23Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Experimental 1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)2012-12-05Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-03FELIX labView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm (predicted from logP)
Biospecimen Locations
  • Blood
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedCancer patients undergoing total body irradiation details
UrineDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedCancer patients undergoing total body irradiation details
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB014518
KNApSAcK IDC00055389
Chemspider ID63498
KEGG Compound IDC04152
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkMethylguanine
METLIN ID3778
PubChem Compound70315
PDB IDNot Available
ChEBI ID21803
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1851531
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Mills GC, Schmalstieg FC, Goldblum RM: Urinary excretion of modified purines and nucleosides in immunodeficient children. Biochem Med. 1985 Aug;34(1):37-51. [PubMed:4052062 ]
  2. Porcelli B, Muraca LF, Frosi B, Marinello E, Vernillo R, De Martino A, Catinella S, Traldi P: Fast-atom bombardment mass spectrometry for mapping of endogenous methylated purine bases in urine extracts. Rapid Commun Mass Spectrom. 1997;11(4):398-404. [PubMed:9069642 ]
  3. Di Pietro MC, Vannoni D, Leoncini R, Liso G, Guerranti R, Marinello E: Determination of urinary methylated purine pattern by high-performance liquid chromatography. J Chromatogr B Biomed Sci Appl. 2001 Feb 10;751(1):87-92. [PubMed:11232859 ]
  4. Kerr SJ: Induction of adipocyte formation in 10T1/2 cells by 1-methylguanine and 7-methylguanine. Tumour Biol. 1985;6(2):115-21. [PubMed:2413515 ]