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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:74688 term browser browse the term
Definition:A biopterin that consists of pterin bearing amino, oxo and 1,2-dihydroxypropyl substituents at positions 2, 4 and 6.
Synonyms:exact_synonym: 2-amino-6-[(1S,2S)-1,2-dihydroxypropyl]pteridin-4(1H)-one
 related_synonym: 6-(L-threo-1,2-dihydroxypropyl)-pterin;   Formula=C9H11N5O3;   InChI=1S/C9H11N5O3/c1-3(15)6(16)4-2-11-7-5(12-4)8(17)14-9(10)13-7/h2-3,6,15-16H,1H3,(H3,10,11,13,14,17)/t3-,6+/m0/s1;   InChIKey=LHQIJBMDNUYRAM-BBIVZNJYSA-N;   SMILES=C[C@H](O)[C@@H](O)c1cnc2[nH]c(N)nc(=O)c2n1;   ciliapterin
 xref: CAS:13039-82-2;   HMDB:HMDB0000817;   MetaCyc:CPD-15311;   PMID:1329838;   PMID:1782220;   Patent:US2006127506

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  CHEBI ontology 19853
    role 19804
      biological role 19804
        biochemical role 19339
          metabolite 19319
            orinapterin 0
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  CHEBI ontology 19853
    subatomic particle 19851
      composite particle 19851
        hadron 19851
          baryon 19851
            nucleon 19851
              atomic nucleus 19851
                atom 19851
                  main group element atom 19744
                    p-block element atom 19744
                      carbon group element atom 19650
                        carbon atom 19639
                          organic molecular entity 19639
                            organic molecule 19568
                              organic cyclic compound 19378
                                organic heterocyclic compound 18495
                                  organic heteropolycyclic compound 17883
                                    organic heterobicyclic compound 16814
                                      pteridines 10207
                                        pterins 9369
                                          biopterins 11
                                            orinapterin 0
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