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CHEBI ONTOLOGY - ANNOTATIONS

The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/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.

Term:purine nucleobase
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Accession:CHEBI:26386 term browser browse the term
Definition:A nucleobase whose skeleton is derived from purine.
Synonyms:related_synonym: Formula=C5H3N4R2;   SMILES=C1(NC(=NC=2NC=NC12)*)=*;   a purine nucleobase;   purine bases;   purine nucleobases
 xref: KEGG:C15587


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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19816
    chemical entity 19816
      atom 19814
        nonmetal atom 19690
          nitrogen atom 18565
            nitrogen molecular entity 18565
              organonitrogen compound 18338
                organonitrogen heterocyclic compound 17485
                  nucleobase 10194
                    purine nucleobase 4356
                      adenine + 776
                      guanine + 3972
                      hypoxanthine + 12
                      purine 2'-deoxyribonucleoside 5'-phosphate(2-) + 0
                      purines D-ribonucleoside + 334
                      xanthine + 3890
Path 2
Term Annotations click to browse term
  CHEBI ontology 19816
    subatomic particle 19814
      composite particle 19814
        hadron 19814
          baryon 19814
            nucleon 19814
              atomic nucleus 19814
                atom 19814
                  main group element atom 19702
                    p-block element atom 19702
                      carbon group element atom 19608
                        carbon atom 19597
                          organic molecular entity 19597
                            organic molecule 19522
                              organic cyclic compound 19320
                                organic heterocyclic compound 18432
                                  organic heteropolycyclic compound 17844
                                    organic heterobicyclic compound 16765
                                      imidazopyrimidine 5443
                                        purines 5441
                                          purine nucleobase 4356
                                            adenine + 776
                                            guanine + 3972
                                            hypoxanthine + 12
                                            purine 2'-deoxyribonucleoside 5'-phosphate(2-) + 0
                                            purines D-ribonucleoside + 334
                                            xanthine + 3890
paths to the root

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