Violaxanthin de-epoxidase
| Violaxanthin de-epoxidase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 1.10.99.3 | ||||||||
| CAS number | 57534-73-3 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
Violaxanthin de-epoxidase (EC 1.10.99.3, VDE) is an enzyme with systematic name violaxanthin:ascorbate oxidoreductase.[1][2][3][4][5][6][7] This enzyme catalyses the following chemical reaction
- violaxanthin + 2 L-ascorbate zeaxanthin + 2 L-dehydroascorbate + 2 H2O (overall reaction)
- (1a) violaxanthin + L-ascorbate antheraxanthin + L-dehydroascorbate + H2O
- (1b) antheraxanthin + L-ascorbate zeaxanthin + L-dehydroascorbate + H2O
Violaxanthin de-epoxidase is a part of the xanthophyll (or violaxanthin) cycle for controlling the concentration of zeaxanthin in chloroplasts.
References
- ↑ Yamamoto, H.Y.; Higashi, R.M. (1978). "Violaxanthin de-epoxidase. Lipid composition and substrate specificity". Arch. Biochem. Biophys. 190 (2): 514–522. doi:10.1016/0003-9861(78)90305-3. PMID 102251.
- ↑ Rockholm, D.C.; Yamamoto, H.Y. (1996). "Violaxanthin de-epoxidase". Plant Physiol. 110 (2): 697–703. doi:10.1104/pp.110.2.697. PMC 157766
. PMID 8742341. - ↑ Bugos, R.C.; Hieber, A.D.; Yamamoto, H.Y. (1998). "Xanthophyll cycle enzymes are members of the lipocalin family, the first identified from plants". J. Biol. Chem. 273 (25): 15321–15324. doi:10.1074/jbc.273.25.15321. PMID 9624110.
- ↑ Kuwabara, T.; Hasegawa, M.; Kawano, M.; Takaichi, S. (1999). "Characterization of violaxanthin de-epoxidase purified in the presence of Tween 20: effects of dithiothreitol and pepstatin A". Plant Cell Physiol. 40 (11): 1119–1126. doi:10.1093/oxfordjournals.pcp.a029496. PMID 10635115.
- ↑ Latowski, D.; Kruk, J.; Burda, K.; Skrzynecka-Jaskierm, M.; Kostecka-Gugala, A.; Strzalka, K. (2002). "Kinetics of violaxanthin de-epoxidation by violaxanthin de-epoxidase, a xanthophyll cycle enzyme, is regulated by membrane fluidity in model lipid bilayers". Eur. J. Biochem. 269 (18): 4656–4665. doi:10.1046/j.1432-1033.2002.03166.x. PMID 12230579.
- ↑ Goss, R. (2003). "Substrate specificity of the violaxanthin de-epoxidase of the primitive green alga Mantoniella squamata (Prasinophyceae)". Planta. 217 (5): 801–812. doi:10.1007/s00425-003-1044-1. PMID 12748855.
- ↑ Latowski, D.; Akerlund, H.E.; Strzalka, K. (2004). "Violaxanthin de-epoxidase, the xanthophyll cycle enzyme, requires lipid inverted hexagonal structures for its activity". Biochemistry. 43 (15): 4417–4420. doi:10.1021/bi049652g. PMID 15078086.
External links
- Violaxanthin de-epoxidase at the US National Library of Medicine Medical Subject Headings (MeSH)
This article is issued from Wikipedia - version of the 5/24/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.