The Enzyme Database

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Accepted name: violacein synthase
Reaction: (1) protoviolaceinate + NAD(P)H + O2 = violaceinate + NAD(P)+ + H2O
(2) protodeoxyviolaceinate + NAD(P)H + O2 = deoxyviolaceinate + NAD(P)+ + H2O
For diagram of violacein biosynthesis, click here
Glossary: violacein = (3E)-3-[5-(5-hydroxy-1H-indol-3-yl)-2-oxo-1,2-dihydro-3H-pyrrol-3-ylidene]-1,3-dihydro-2H-indol-2-one
Other name(s): proviolaceinate monooxygenase; vioC (gene name)
Systematic name: protoviolaceinate,NAD(P)H:O2 oxidoreductase
Comments: The enzyme, characterized from the bacterium Chromobacterium violaceum, participates in the biosynthesis of the violet pigment violacein. The products, violaceinate and deoxyviolaceinate, undergo non-enzymic autooxidation into violacein and deoxyviolacein, respectively.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Balibar, C.J. and Walsh, C.T. In vitro biosynthesis of violacein from L-tryptophan by the enzymes VioA-E from Chromobacterium violaceum. Biochemistry 45 (2006) 15444–15457. [DOI] [PMID: 17176066]
2.  Shinoda, K., Hasegawa, T., Sato, H., Shinozaki, M., Kuramoto, H., Takamiya, Y., Sato, T., Nikaidou, N., Watanabe, T. and Hoshino, T. Biosynthesis of violacein: a genuine intermediate, protoviolaceinic acid, produced by VioABDE, and insight into VioC function. Chem. Commun. (Camb.) (2007) 4140–4142. [DOI] [PMID: 17925955]
[EC created 2016]

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