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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2023-02-21 17:15:48 UTC
HMDB IDHMDB0001566
Secondary Accession Numbers
  • HMDB01566
Metabolite Identification
Common Name3-Methylguanine
Description3-Methylguanine belongs to the class of organic compounds known as purines and purine derivatives. These are aromatic heterocyclic compounds containing a purine moiety, which is formed a pyrimidine-ring ring fused to an imidazole ring. 3-Methylguanine has been detected, but not quantified in, a few different foods, such as anatidaes (Anatidae), chickens (Gallus gallus), and domestic pigs (Sus scrofa domestica). This could make 3-methylguanine a potential biomarker for the consumption of these foods. Based on a literature review a significant number of articles have been published on 3-Methylguanine.
Structure
Data?1676999748
Synonyms
ValueSource
N(3)-MethylguanineChEBI
2-Amino-3,7-dihydro-3-methyl-6H-purin-6-oneKegg
3-Methyl-guanineHMDB
7-dihydro-3-Methyl-2-amino-3-6H-purin-6-oneHMDB
7-dihydro-3-Methyl-2-amino-3-6H-purin-6-one (9ci)HMDB
N3-MethylguanineHMDB
3-MethylguanineMeSH
Chemical FormulaC6H7N5O
Average Molecular Weight165.1527
Monoisotopic Molecular Weight165.065059871
IUPAC Name2-amino-3-methyl-6,7-dihydro-3H-purin-6-one
Traditional NameN(3)-methylguanine
CAS Registry Number2958-98-7
SMILES
CN1C2=C(NC=N2)C(=O)N=C1N
InChI Identifier
InChI=1S/C6H7N5O/c1-11-4-3(8-2-9-4)5(12)10-6(11)7/h2H,1H3,(H,8,9)(H2,7,10,12)
InChI KeyXHBSBNYEHDQRCP-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as purines and purine derivatives. These are aromatic heterocyclic compounds containing a purine moiety, which is formed a pyrimidine-ring ring fused to an imidazole ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassImidazopyrimidines
Sub ClassPurines and purine derivatives
Direct ParentPurines and purine derivatives
Alternative Parents
Substituents
  • Purine
  • Hydroxypyrimidine
  • Pyrimidine
  • Heteroaromatic compound
  • Imidazole
  • Azole
  • Azacycle
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen 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 SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility7.05 g/LALOGPS
logP-0.9ALOGPS
logP-1.2ChemAxon
logS-1.4ALOGPS
pKa (Strongest Acidic)9.01ChemAxon
pKa (Strongest Basic)1.45ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area87.37 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity43.14 m³·mol⁻¹ChemAxon
Polarizability15.33 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]+133.60231661259
DarkChem[M-H]-133.89331661259
AllCCS[M+H]+135.45832859911
AllCCS[M-H]-131.20932859911
DeepCCS[M+H]+132.34130932474
DeepCCS[M-H]-130.04130932474
DeepCCS[M-2H]-165.24330932474
DeepCCS[M+Na]+139.25130932474
AllCCS[M+H]+135.532859911
AllCCS[M+H-H2O]+131.032859911
AllCCS[M+NH4]+139.632859911
AllCCS[M+Na]+140.832859911
AllCCS[M-H]-131.232859911
AllCCS[M+Na-2H]-132.032859911
AllCCS[M+HCOO]-132.832859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
3-MethylguanineCN1C2=C(NC=N2)C(=O)N=C1N2632.7Standard polar33892256
3-MethylguanineCN1C2=C(NC=N2)C(=O)N=C1N1979.5Standard non polar33892256
3-MethylguanineCN1C2=C(NC=N2)C(=O)N=C1N2290.5Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
3-Methylguanine,1TMS,isomer #1CN1C(N[Si](C)(C)C)=NC(=O)C2=C1N=C[NH]22105.1Semi standard non polar33892256
3-Methylguanine,1TMS,isomer #1CN1C(N[Si](C)(C)C)=NC(=O)C2=C1N=C[NH]22121.6Standard non polar33892256
3-Methylguanine,1TMS,isomer #1CN1C(N[Si](C)(C)C)=NC(=O)C2=C1N=C[NH]23139.5Standard polar33892256
3-Methylguanine,1TMS,isomer #2CN1C(N)=NC(=O)C2=C1N=CN2[Si](C)(C)C2080.8Semi standard non polar33892256
3-Methylguanine,1TMS,isomer #2CN1C(N)=NC(=O)C2=C1N=CN2[Si](C)(C)C2112.4Standard non polar33892256
3-Methylguanine,1TMS,isomer #2CN1C(N)=NC(=O)C2=C1N=CN2[Si](C)(C)C2974.3Standard polar33892256
3-Methylguanine,2TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC(=O)C2=C1N=C[NH]22026.9Semi standard non polar33892256
3-Methylguanine,2TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC(=O)C2=C1N=C[NH]22181.2Standard non polar33892256
3-Methylguanine,2TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC(=O)C2=C1N=C[NH]22847.1Standard polar33892256
3-Methylguanine,2TMS,isomer #2CN1C(N[Si](C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C2080.8Semi standard non polar33892256
3-Methylguanine,2TMS,isomer #2CN1C(N[Si](C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C2046.0Standard non polar33892256
3-Methylguanine,2TMS,isomer #2CN1C(N[Si](C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C2752.9Standard polar33892256
3-Methylguanine,3TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C2065.4Semi standard non polar33892256
3-Methylguanine,3TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C2139.7Standard non polar33892256
3-Methylguanine,3TMS,isomer #1CN1C(N([Si](C)(C)C)[Si](C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C2460.4Standard polar33892256
3-Methylguanine,1TBDMS,isomer #1CN1C(N[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=C[NH]22317.2Semi standard non polar33892256
3-Methylguanine,1TBDMS,isomer #1CN1C(N[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=C[NH]22318.1Standard non polar33892256
3-Methylguanine,1TBDMS,isomer #1CN1C(N[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=C[NH]23145.1Standard polar33892256
3-Methylguanine,1TBDMS,isomer #2CN1C(N)=NC(=O)C2=C1N=CN2[Si](C)(C)C(C)(C)C2337.9Semi standard non polar33892256
3-Methylguanine,1TBDMS,isomer #2CN1C(N)=NC(=O)C2=C1N=CN2[Si](C)(C)C(C)(C)C2268.2Standard non polar33892256
3-Methylguanine,1TBDMS,isomer #2CN1C(N)=NC(=O)C2=C1N=CN2[Si](C)(C)C(C)(C)C3047.6Standard polar33892256
3-Methylguanine,2TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=C[NH]22425.9Semi standard non polar33892256
3-Methylguanine,2TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=C[NH]22570.4Standard non polar33892256
3-Methylguanine,2TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=C[NH]22842.2Standard polar33892256
3-Methylguanine,2TBDMS,isomer #2CN1C(N[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C(C)(C)C2506.4Semi standard non polar33892256
3-Methylguanine,2TBDMS,isomer #2CN1C(N[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C(C)(C)C2458.9Standard non polar33892256
3-Methylguanine,2TBDMS,isomer #2CN1C(N[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C(C)(C)C2815.2Standard polar33892256
3-Methylguanine,3TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C(C)(C)C2655.4Semi standard non polar33892256
3-Methylguanine,3TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C(C)(C)C2790.7Standard non polar33892256
3-Methylguanine,3TBDMS,isomer #1CN1C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC(=O)C2=C1N=CN2[Si](C)(C)C(C)(C)C2679.2Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 3-Methylguanine GC-MS (Non-derivatized) - 70eV, Positivesplash10-00ks-4900000000-89c964e93b806d54b24e2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3-Methylguanine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3-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 - 3-Methylguanine LC-ESI-QQ , negative-QTOFsplash10-03di-0900000000-c4ba0ed5b3ac83a6d7732017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3-Methylguanine LC-ESI-QQ , negative-QTOFsplash10-0229-0900000000-af571ef129b2b3b3df912017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3-Methylguanine LC-ESI-QQ , negative-QTOFsplash10-00di-4900000000-9ca1b8bbcde0e92e95422017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3-Methylguanine LC-ESI-QQ , negative-QTOFsplash10-0006-9200000000-f270ece6f4adfadf299b2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3-Methylguanine LC-ESI-QQ , negative-QTOFsplash10-00kf-9000000000-f60ca01e4c5c004b1e2e2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3-Methylguanine LC-ESI-QQ , positive-QTOFsplash10-00kb-1900000000-f5ba70dcaf0333618ce02017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3-Methylguanine LC-ESI-QQ , positive-QTOFsplash10-00di-9300000000-c9da84dbc7393cd52b912017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3-Methylguanine LC-ESI-QQ , positive-QTOFsplash10-00dj-9300000000-a69603f1c727d6e9b6762017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3-Methylguanine LC-ESI-QQ , positive-QTOFsplash10-006t-9200000000-4fe8bf3a7624361a82582017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3-Methylguanine LC-ESI-QQ , positive-QTOFsplash10-00kb-9000000000-c684cc4440c891627e862017-09-14HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 10V, Positive-QTOFsplash10-014i-0900000000-e9b946da74da624a31e52017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 20V, Positive-QTOFsplash10-014i-0900000000-c6cb6f9878561963a5ae2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 40V, Positive-QTOFsplash10-0006-9000000000-2086b37308342d3b97962017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 10V, Negative-QTOFsplash10-03di-0900000000-bb41cab24a7d825ed51e2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 20V, Negative-QTOFsplash10-03di-1900000000-708291e89fdfe380eb772017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 40V, Negative-QTOFsplash10-0006-9100000000-365be27ae084e43e2c912017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 10V, Positive-QTOFsplash10-014i-0900000000-7f20cf9333bbb1eb98e12021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 20V, Positive-QTOFsplash10-014i-1900000000-159abc1d748adca9c71b2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 40V, Positive-QTOFsplash10-00kk-9700000000-0e844a011c93edd3795b2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 10V, Negative-QTOFsplash10-03di-0900000000-11e5406fb2e0acd600c02021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 20V, Negative-QTOFsplash10-03di-1900000000-d2b1245d26c22108718a2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylguanine 40V, Negative-QTOFsplash10-0006-9100000000-1826d75f2a3b91e56c822021-09-22Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-25Wishart 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 LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB022693
KNApSAcK IDNot Available
Chemspider ID68771
KEGG Compound IDC02230
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkMethylguanine
METLIN IDNot Available
PubChem Compound76292
PDB IDNot Available
ChEBI ID27564
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceItaya, Taisuke; Shioyama, Chieko; Kagatani, Seiya. Improved synthesis of 3-methylguanine. Chemical & Pharmaceutical Bulletin (1982), 30(9), 3392-4.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. 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 ]

Enzymes

General function:
Involved in catalytic activity
Specific function:
Hydrolysis of the deoxyribose N-glycosidic bond to excise 3-methyladenine, and 7-methylguanine from the damaged DNA polymer formed by alkylation lesions
Gene Name:
MPG
Uniprot ID:
P29372
Molecular weight:
32868.4