Tryptophan tryptophylquinone

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Tryptophan tryptophylquinone
Tryptophan tryptophylquinone - generic.png
IUPAC name
2-Amino-3-[2-[2-amino-3-(2-carboxyethyl)-6,7-dioxo-1H-indol-4-yl]-1H-indol-3-yl]propanoic acid
3D model (JSmol)
MeSH Tryptophan+tryptophylquinone
Molar mass 436.424 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Tryptophan tryptophylquinone (TTQ) is an enzyme cofactor, generated by posttranslational modification of amino acids within the protein. Methylamine dehydrogenase (MADH), an amine dehydrogenase, requires TTQ for its catalytic function.[1]

See also[edit]


  1. ^ Davidson VL, Liu A: Uncovering novel biochemistry in the mechanism of tryptophan tryptophylquinone cofactor biosynthesis Curr. Op. Chem. Biol. 2009, 13: 469-474