Neoxanthin synthase explained

Neoxanthin synthase
Ec Number:	5.3.99.9

In enzymology, a neoxanthin synthase is an enzyme that catalyzes the chemical reaction:

violaxanthin

\rightleftharpoons neoxanthin

Hence, this enzyme has one substrate, violaxanthin, and one product, neoxanthin.

This enzyme belongs to the family of isomerases, specifically a class of other intramolecular oxidoreductases. The systematic name of this enzyme class is violaxanthin---neoxanthin isomerase (epoxide-opening). This enzyme is also called NSY. This enzyme participates in carotenoid biosynthesis - general.

References

• Beyer P . 2000 . Identification of a novel gene coding for neoxanthin synthase from Solanum tuberosum . FEBS Lett. . 485 . 168 - 72 . 11094161 . 10.1016/S0014-5793(00)02193-1 . Hugueney . P . Schledz . M . Welsch . R . Frohnmeyer . H . Laule . O . Beyer . P . 2–3 . 24056399 . free .
• Bouvier F, D'harlingue A, Backhaus RA, Kumagai MH, Camara B . 2000 . Identification of neoxanthin synthase as a carotenoid cyclase paralog . Eur. J. Biochem. . 267 . 6346 - 52 . 11029576 . 10.1046/j.1432-1327.2000.01722.x . 21 . free .