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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:63931 term browser browse the term
Definition:A biopterin in which the 1,2-dihydroxypropyl group has (1R,2S)-configuration; naturally occurring form.
Synonyms:exact_synonym: 2-amino-6-[(1R,2S)-1,2-dihydroxypropyl]pteridin-4(3H)-one
 related_synonym: (-)-biopterin;   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-DZSWIPIPSA-N;   SMILES=C12=C(N=C(C=N1)[C@H]([C@H](C)O)O)C(NC(=N2)N)=O
 xref: HMDB:HMDB0000468
 xref_mesh: MESH:D001708
 xref: MetaCyc:CPD-10819;   PMID:1254867;   PMID:1880542;   PMID:4414114;   Patent:GB814462;   Reaxys:87860
 cyclic_relationship: is_enantiomer_of CHEBI:41183

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19816
    role 19764
      biological role 19764
        biochemical role 19313
          metabolite 19294
            biopterin 2
              L-erythro-biopterin 0
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
                                      pteridines 10197
                                        pterins 9359
                                          biopterins 11
                                            biopterin 2
                                              L-erythro-biopterin 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.