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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 19785
    role 19732
      application 19391
        pharmaceutical 19272
          drug 19272
            nutraceutical 12613
              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 19785
    subatomic particle 19782
      composite particle 19782
        hadron 19782
          baryon 19782
            nucleon 19782
              atomic nucleus 19782
                atom 19782
                  main group element atom 19670
                    p-block element atom 19670
                      carbon group element atom 19572
                        carbon atom 19561
                          organic molecular entity 19561
                            organic group 18493
                              organic divalent group 18486
                                organodiyl group 18486
                                  carbonyl group 18389
                                    carbonyl compound 18389
                                      carboxylic acid 18060
                                        amino acid 14072
                                          alpha-amino acid 11539
                                            L-alpha-amino acid 11374
                                              erythrose 4-phosphate/phosphoenolpyruvate family amino acid 2229
                                                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.