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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:17619 term browser browse the term
Definition:A L-tryptophan derivative that has formula C16H20N2O2.
Synonyms:exact_synonym: 4-(3-methylbut-2-en-1-yl)-L-tryptophan
 related_synonym: Formula=C16H20N2O2;   InChI=1S/C16H20N2O2/c1-10(2)6-7-11-4-3-5-14-15(11)12(9-18-14)8-13(17)16(19)20/h3-6,9,13,18H,7-8,17H2,1-2H3,(H,19,20)/t13-/m0/s1;   InChIKey=MZSPRSJAOSKAAT-ZDUSSCGKSA-N;   SMILES=CC(C)=CCc1cccc2[nH]cc(C[C@H](N)C(O)=O)c12
 alt_id: CHEBI:11933;   CHEBI:1766;   CHEBI:20288
 xref: KEGG:C04290
 cyclic_relationship: is_tautomer_of CHEBI:58209

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Path 1
Term Annotations click to browse term
  CHEBI ontology 21475
    role 21452
      application 20933
        pharmaceutical 20389
          drug 20389
            nutraceutical 13078
              L-tryptophan 7
                L-tryptophan derivative 3
                  4-(3-methylbut-2-enyl)-L-tryptophan 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 21475
    subatomic particle 21460
      composite particle 21460
        hadron 21460
          baryon 21460
            nucleon 21460
              atomic nucleus 21460
                atom 21460
                  main group element atom 21360
                    p-block element atom 21360
                      carbon group element atom 21147
                        carbon atom 21045
                          organic molecular entity 21045
                            organic group 19485
                              organic divalent group 19475
                                organodiyl group 19475
                                  carbonyl group 19452
                                    carbonyl compound 19452
                                      carboxylic acid 19065
                                        amino acid 14568
                                          alpha-amino acid 11990
                                            L-alpha-amino acid 11812
                                              erythrose 4-phosphate/phosphoenolpyruvate family amino acid 2238
                                                L-tryptophan 7
                                                  L-tryptophan derivative 3
                                                    4-(3-methylbut-2-enyl)-L-tryptophan 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.