<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2011-09-21 00:13:50 UTC</creation_date>
  <update_date>2025-11-19 02:41:40 UTC</update_date>
  <accession>FDB022428</accession>
  <name>7-Methylguanosine</name>
  <description>7-methylguanosine 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. 7-Methylguanosine is a substrate for purine-nucleoside phosphorylase and Eukaryotic translation initiation factor 4E. (PMID: 3506820, 17044778, 17264127, 16799933) [HMDB]</description>
  <synonyms>
    <synonym>2-amino-6,9-dihydro-7-methyl-6-oxo-9-beta-D-ribofuranosyl-1H-Purinium</synonym>
    <synonym>2-amino-6,9-dihydro-7-methyl-6-oxo-9-beta-delta-ribofuranosyl-1H-Purinium</synonym>
    <synonym>m7g</synonym>
    <synonym>N(7)-Methylguanosine</synonym>
  </synonyms>
  <chemical_formula>C11H16N5O5</chemical_formula>
  <average_molecular_weight>298.2752</average_molecular_weight>
  <monisotopic_moleculate_weight>298.115143647</monisotopic_moleculate_weight>
  <iupac_name>2-amino-9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-7-methyl-6-oxo-6,7-dihydro-3H-9lambda5-purin-9-ylium</iupac_name>
  <traditional_iupac>2-amino-9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-7-methyl-6-oxo-3H-9lambda5-purin-9-ylium</traditional_iupac>
  <cas_registry_number>20244-86-4</cas_registry_number>
  <smiles>CN1C=[N+]([C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)C2=C1C(=O)N=C(N)N2</smiles>
  <inchi>InChI=1S/C11H15N5O5/c1-15-3-16(8-5(15)9(20)14-11(12)13-8)10-7(19)6(18)4(2-17)21-10/h3-4,6-7,10,17-19H,2H2,1H3,(H2-,12,13,14,20)/p+1/t4-,6-,7-,10-/m1/s1</inchi>
  <inchikey>OGHAROSJZRTIOK-KQYNXXCUSA-O</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as purine nucleosides. Purine nucleosides are compounds comprising a purine base attached to a ribosyl or deoxyribosyl moiety.</description>
    <direct_parent>Purine nucleosides</direct_parent>
    <kingdom>Organic compounds</kingdom>
    <super_class>Nucleosides, nucleotides, and analogues</super_class>
    <class>Purine nucleosides</class>
    <sub_class/>
    <molecular_framework>Aromatic heteropolycyclic compounds</molecular_framework>
    <alternative_parents>
      <alternative_parent>6-oxopurines</alternative_parent>
      <alternative_parent>Aminopyrimidines and derivatives</alternative_parent>
      <alternative_parent>Azacyclic compounds</alternative_parent>
      <alternative_parent>Glycosylamines</alternative_parent>
      <alternative_parent>Heteroaromatic compounds</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Hypoxanthines</alternative_parent>
      <alternative_parent>N-substituted imidazoles</alternative_parent>
      <alternative_parent>Organic cations</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Organopnictogen compounds</alternative_parent>
      <alternative_parent>Oxacyclic compounds</alternative_parent>
      <alternative_parent>Pentoses</alternative_parent>
      <alternative_parent>Primary alcohols</alternative_parent>
      <alternative_parent>Primary amines</alternative_parent>
      <alternative_parent>Pyrimidones</alternative_parent>
      <alternative_parent>Secondary alcohols</alternative_parent>
      <alternative_parent>Tetrahydrofurans</alternative_parent>
      <alternative_parent>Vinylogous amides</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>6-oxopurine</substituent>
      <substituent>Alcohol</substituent>
      <substituent>Amine</substituent>
      <substituent>Aminopyrimidine</substituent>
      <substituent>Aromatic heteropolycyclic compound</substituent>
      <substituent>Azacycle</substituent>
      <substituent>Azole</substituent>
      <substituent>Glycosyl compound</substituent>
      <substituent>Heteroaromatic compound</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Hypoxanthine</substituent>
      <substituent>Imidazole</substituent>
      <substituent>Imidazopyrimidine</substituent>
      <substituent>Monosaccharide</substituent>
      <substituent>N-glycosyl compound</substituent>
      <substituent>N-substituted imidazole</substituent>
      <substituent>Organic cation</substituent>
      <substituent>Organic nitrogen compound</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organoheterocyclic compound</substituent>
      <substituent>Organonitrogen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Organopnictogen compound</substituent>
      <substituent>Oxacycle</substituent>
      <substituent>Pentose monosaccharide</substituent>
      <substituent>Primary alcohol</substituent>
      <substituent>Primary amine</substituent>
      <substituent>Purine</substituent>
      <substituent>Purine nucleoside</substituent>
      <substituent>Pyrimidine</substituent>
      <substituent>Pyrimidone</substituent>
      <substituent>Secondary alcohol</substituent>
      <substituent>Tetrahydrofuran</substituent>
      <substituent>Vinylogous amide</substituent>
    </substituents>
    <external_descriptors>
      <external_descriptor>methylguanosine</external_descriptor>
      <external_descriptor>organic cation</external_descriptor>
    </external_descriptors>
  </taxonomy>
  <state>Solid</state>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>-1.43</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-1.77</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>5.61e+00 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>-6.2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_acidic</kind>
    <value>6.01</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>2-amino-9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-7-methyl-6-oxo-6,7-dihydro-3H-9lambda5-purin-9-ylium</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>298.2752</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>298.115143647</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>CN1C=[N+]([C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)C2=C1C(=O)N=C(N)N2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C11H16N5O5</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C11H15N5O5/c1-15-3-16(8-5(15)9(20)14-11(12)13-8)10-7(19)6(18)4(2-17)21-10/h3-4,6-7,10,17-19H,2H2,1H3,(H2-,12,13,14,20)/p+1/t4-,6-,7-,10-/m1/s1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>OGHAROSJZRTIOK-KQYNXXCUSA-O</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>146.21</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>69.38</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>28.47</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>8</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>donor_count</kind>
    <value>5</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>physiological_charge</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formal_charge</kind>
    <value>1</value>
    <source>ChemAxon</source>
  </property>
  <pathways>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::NmrTwoD</type>
      <spectrum_id>1585</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>6991</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>37928</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>131323</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>139057</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>1644</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8642</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8643</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8644</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8645</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8646</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8647</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8648</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8649</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8650</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8651</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8652</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8653</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8654</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8655</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8656</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8657</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8658</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8659</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8660</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>8661</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>166632</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1424</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1425</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1426</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>251097</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>251098</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>251099</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>271038</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>271039</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>271040</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2235996</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2241573</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2242171</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2243677</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2278352</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2278353</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2278354</spectrum_id>
    </spectrum>
  </spectra>
  <hmdb_id>HMDB01107</hmdb_id>
  <pubchem_compound_id/>
  <chemspider_id/>
  <kegg_id/>
  <chebi_id/>
  <biocyc_id/>
  <het_id>MG7</het_id>
  <wikipidia/>
  <vmh_id/>
  <fbonto_id/>
  <foodb_id/>
  <general_references>
    <reference>#&lt;Reference:0x000055ce2d93ac50&gt;</reference>
    <reference>#&lt;Reference:0x000055ce2d93aa20&gt;</reference>
    <reference>#&lt;Reference:0x000055ce2d939ff8&gt;</reference>
    <reference>#&lt;Reference:0x000055ce2d938ae0&gt;</reference>
    <reference>#&lt;Reference:0x000055ce2d923168&gt;</reference>
    <reference>#&lt;Reference:0x000055ce2d922100&gt;</reference>
    <reference>#&lt;Reference:0x000055ce2d921728&gt;</reference>
  </general_references>
  <foods>
    <food>
      <name>Anatidae</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Anatidae</name_scientific>
      <ncbi_taxonomy_id>8830</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Beefalo</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Bos taurus X Bison bison</name_scientific>
      <ncbi_taxonomy_id>297284</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Bison</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Bison bison</name_scientific>
      <ncbi_taxonomy_id>9901</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Buffalo</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Bubalus bubalis</name_scientific>
      <ncbi_taxonomy_id>89462</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Cattle (Beef, Veal)</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Bos taurus</name_scientific>
      <ncbi_taxonomy_id>9913</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Chicken</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Gallus gallus</name_scientific>
      <ncbi_taxonomy_id>9031</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Columbidae (Dove, Pigeon)</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Columbidae</name_scientific>
      <ncbi_taxonomy_id>8930</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Deer</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cervidae</name_scientific>
      <ncbi_taxonomy_id>9850</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Domestic goat</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Capra aegagrus hircus</name_scientific>
      <ncbi_taxonomy_id>9925</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Domestic pig</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Sus scrofa domestica</name_scientific>
      <ncbi_taxonomy_id>9825</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Elk</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cervus canadensis</name_scientific>
      <ncbi_taxonomy_id>1574408</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Emu</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Dromaius novaehollandiae</name_scientific>
      <ncbi_taxonomy_id>8790</ncbi_taxonomy_id>
    </food>
    <food>
      <name>European rabbit</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Oryctolagus</name_scientific>
      <ncbi_taxonomy_id>9984</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Greylag goose</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Anser anser</name_scientific>
      <ncbi_taxonomy_id>8843</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Guinea hen</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Numida meleagris</name_scientific>
      <ncbi_taxonomy_id>8996</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Horse</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Equus caballus</name_scientific>
      <ncbi_taxonomy_id>9796</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Mallard duck</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Anas platyrhynchos</name_scientific>
      <ncbi_taxonomy_id>8839</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Mountain hare</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Lepus timidus</name_scientific>
      <ncbi_taxonomy_id>62621</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Mule deer</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Odocoileus</name_scientific>
      <ncbi_taxonomy_id>9871</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Ostrich</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Struthio camelus</name_scientific>
      <ncbi_taxonomy_id>8801</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Pheasant</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Phasianus colchicus</name_scientific>
      <ncbi_taxonomy_id>9054</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Quail</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Phasianidae</name_scientific>
      <ncbi_taxonomy_id>9005</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Rabbit</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Leporidae</name_scientific>
      <ncbi_taxonomy_id>9979</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Rock ptarmigan</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Lagopus muta</name_scientific>
      <ncbi_taxonomy_id>64668</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Sheep (Mutton, Lamb)</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Ovis aries</name_scientific>
      <ncbi_taxonomy_id>9940</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Squab</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Columba</name_scientific>
      <ncbi_taxonomy_id>8931</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Turkey</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Meleagris gallopavo</name_scientific>
      <ncbi_taxonomy_id>9103</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Velvet duck</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Melanitta fusca</name_scientific>
      <ncbi_taxonomy_id>371864</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Wild boar</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Sus scrofa</name_scientific>
      <ncbi_taxonomy_id>9823</ncbi_taxonomy_id>
    </food>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
