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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

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Accession:CHEBI:68444 term browser browse the term
Definition:A 1-methylxanthine tautomer where the imidazole proton is located at the 7-position.
Synonyms:exact_synonym: 1-methyl-3,7-dihydro-1H-purine-2,6-dione
 related_synonym: Formula=C6H6N4O2;   InChI=1S/C6H6N4O2/c1-10-5(11)3-4(8-2-7-3)9-6(10)12/h2H,1H3,(H,7,8)(H,9,12);   InChIKey=MVOYJPOZRLFTCP-UHFFFAOYSA-N;   SMILES=Cn1c(=O)[nH]c2nc[nH]c2c1=O
 xref: CAS:6136-37-4;   HMDB:HMDB0010738;   KEGG:C16358
 xref_mesh: MESH:C053085
 xref: MetaCyc:CPD-9025;   PMID:22770225;   Reaxys:171507

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1-methyl-7H-xanthine term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Cyp1a2 cytochrome P450, family 1, subfamily a, polypeptide 2 decreases activity
multiple interactions
ISO 1-methylxanthine results in decreased activity of CYP1A2 protein
[CYP1A2 protein results in increased metabolism of 1,7-dimethylxanthine] which results in increased chemical synthesis of 1-methylxanthine
CTD PMID:11465391 PMID:19215233 NCBI chr 8:58,075,367...58,082,255
Ensembl chr 8:58,075,367...58,082,312
JBrowse link
G Xdh xanthine dehydrogenase multiple interactions
increases metabolic processing
ISO [XDH protein alternative form results in increased metabolism of 1-methylxanthine] which results in increased chemical synthesis of 1-methyluric acid CTD PMID:19215233 NCBI chr 6:21,530,463...21,592,172
Ensembl chr 6:21,530,113...21,592,268
JBrowse link

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19838
    role 19810
      biological role 19808
        biochemical role 19543
          metabolite 19506
            fundamental metabolite 14432
              xanthine 6192
                7H-xanthine 3130
                  1-methyl-7H-xanthine 2
                    1-methyl-3-propyl-7H-xanthine 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19838
    subatomic particle 19836
      composite particle 19836
        hadron 19836
          baryon 19836
            nucleon 19836
              atomic nucleus 19836
                atom 19836
                  main group element atom 19782
                    p-block element atom 19782
                      carbon group element atom 19722
                        carbon atom 19719
                          organic molecular entity 19719
                            organic molecule 19670
                              organic cyclic compound 19481
                                organic heterocyclic compound 18857
                                  organic heteropolycyclic compound 18303
                                    organic heterobicyclic compound 17221
                                      imidazopyrimidine 7714
                                        purines 7717
                                          aminopurine 6722
                                            2-aminopurines 6297
                                              guanine 6270
                                                xanthine 6192
                                                  methylxanthine 4085
                                                    monomethylxanthine 2
                                                      1-methylxanthine 2
                                                        1-methyl-7H-xanthine 2
                                                          1-methyl-3-propyl-7H-xanthine 0
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