Keywords - CTQ (KW-0885)

  • Definition
    Protein which contains at least one cysteine tryptophylquinone (CTQ) cross-link modification. CTQ is formed by oxidation of the indole ring of a tryptophan to form tryptophylquinone followed by covalent cross- linking with a cysteine residue. In the quinohemoprotein amine dehydrogenase, CTQ mediates during the catalytic cycle electron transfer from the substrate to either a copper protein, azurin, or cytochrome c-550.
  • Synonyms
    • Cysteine tryptophylquinone
  • Category
  • Gene Ontology (GO)
  • Ancestors
  • Graphical
    CTQ

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