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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.

Term:cysteine tryptophylquinone
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Accession:CHEBI:73670 term browser browse the term
Definition:An L-tryptophan derivative that is L-tryptophan-6,7-dione in which a cysteine unit is attached at position 4 via its side-chain thiol group.
Synonyms:exact_synonym: S-{3-[(2S)-2-amino-2-carboxyethyl]-6,7-dioxo-6,7-dihydro-1H-indol-4-yl}-L-cysteine
 related_synonym: CTQ;   Formula=C14H15N3O6S;   InChI=1S/C14H15N3O6S/c15-6(13(20)21)1-5-3-17-11-10(5)9(2-8(18)12(11)19)24-4-7(16)14(22)23/h2-3,6-7,17H,1,4,15-16H2,(H,20,21)(H,22,23)/t6-,7-/m0/s1;   InChIKey=XSFUAHVXCRYKEI-BQBZGAKWSA-N;   SMILES=N[C@@H](CSC1=CC(=O)C(=O)c2[nH]cc(C[C@H](N)C(O)=O)c12)C(O)=O
 xref: MetaCyc:CPD-12470;   PMID:11717396;   PMID:12427036;   PMID:12974623

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Term Annotations click to browse term
  CHEBI ontology 19792
    role 19738
      application 19385
        pharmaceutical 19255
          drug 19255
            nutraceutical 12622
              L-tryptophan 7
                L-tryptophan derivative 3
                  cysteine tryptophylquinone 0
                    cysteine tryptophylquinone residue 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19792
    subatomic particle 19788
      composite particle 19788
        hadron 19788
          baryon 19788
            nucleon 19788
              atomic nucleus 19788
                atom 19788
                  main group element atom 19675
                    p-block element atom 19675
                      carbon group element atom 19571
                        carbon atom 19560
                          organic molecular entity 19560
                            organic group 18508
                              organic divalent group 18501
                                organodiyl group 18501
                                  carbonyl group 18404
                                    carbonyl compound 18404
                                      carboxylic acid 18079
                                        amino acid 14080
                                          alpha-amino acid 11547
                                            L-alpha-amino acid 11381
                                              serine family amino acid 1848
                                                L-cysteine 1132
                                                  L-cysteine derivative 1121
                                                    S-substituted L-cysteine 141
                                                      L-cysteine thioether 58
                                                        cysteine tryptophylquinone 0
                                                          cysteine tryptophylquinone residue 0
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