EC 5.3.99.9 - Neoxanthin synthase

  IntEnz view ENZYME view

IntEnz Enzyme Nomenclature
EC 5.3.99.9

Names

Accepted name:
neoxanthin synthase
Other name:
NSY
Systematic name:
violaxanthin—neoxanthin isomerase (epoxide-opening)

Reaction

Comments:

The opening of the epoxide ring of violaxanthin generates a chiral allene. Neoxanthin is a precursor of the plant hormone abscisic acid and the last product of carotenoid synthesis in green plants [2].

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , DIAGRAM , DIAGRAM , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB
Gene Ontology: GO:0034020
UniProtKB/Swiss-Prot:

References

  1. Al-Babili, S., Hugueney, P., Schledz, M., Welsch, R., Frohnmeyer, H., Laule, O. and Beyer, P.
    Identification of a novel gene coding for neoxanthin synthase from Solanum tuberosum.
    FEBS Lett. 485: 168-172 (2000). [PMID: 11094161]
  2. Bouvier, F., d'Harlingue, A., Backhaus, R.A., Kumagai, M.H. and Camara, B.
    Identification of neoxanthin synthase as a carotenoid cyclase paralog.
    Eur. J. Biochem. 267: 6346-6352 (2000). [PMID: 11029576]

[EC 5.3.99.9 created 2005]