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词条 Violaxanthin de-epoxidase
释义

  1. References

  2. External links

{{Infobox enzyme
| Name = Violaxanthin de-epoxidase
| EC_number = 1.10.99.3
| CAS_number = 57534-73-3
| IUBMB_EC_number = 1/10/99/3
| GO_code =
| image =
| width =
| caption =
}}Violaxanthin de-epoxidase ({{EC number|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

1. ^{{cite journal | vauthors = Yamamoto HY, Higashi RM | title = Violaxanthin de-epoxidase. Lipid composition and substrate specificity | journal = Archives of Biochemistry and Biophysics | volume = 190 | issue = 2 | pages = 514–22 | date = October 1978 | pmid = 102251 | doi = 10.1016/0003-9861(78)90305-3 }}
2. ^{{cite journal | vauthors = Rockholm DC, Yamamoto HY | title = Violaxanthin de-epoxidase | journal = Plant Physiology | volume = 110 | issue = 2 | pages = 697–703 | date = February 1996 | pmid = 8742341 | pmc = 157766 | doi = 10.1104/pp.110.2.697 }}
3. ^{{cite journal | vauthors = Bugos RC, Hieber AD, Yamamoto HY | title = Xanthophyll cycle enzymes are members of the lipocalin family, the first identified from plants | journal = The Journal of Biological Chemistry | volume = 273 | issue = 25 | pages = 15321–4 | date = June 1998 | pmid = 9624110 | doi = 10.1074/jbc.273.25.15321 }}
4. ^{{cite journal | vauthors = Kuwabara T, Hasegawa M, Kawano M, Takaichi S | title = Characterization of violaxanthin de-epoxidase purified in the presence of Tween 20: effects of dithiothreitol and pepstatin A | journal = Plant & Cell Physiology | volume = 40 | issue = 11 | pages = 1119–26 | date = November 1999 | pmid = 10635115 | doi = 10.1093/oxfordjournals.pcp.a029496 }}
5. ^{{cite journal | vauthors = Latowski D, Kruk J, Burda K, Skrzynecka-Jaskier M, Kostecka-Gugała A, Strzałka K | title = Kinetics of violaxanthin de-epoxidation by violaxanthin de-epoxidase, a xanthophyll cycle enzyme, is regulated by membrane fluidity in model lipid bilayers | journal = European Journal of Biochemistry | volume = 269 | issue = 18 | pages = 4656–65 | date = September 2002 | pmid = 12230579 | doi = 10.1046/j.1432-1033.2002.03166.x }}
6. ^{{cite journal | vauthors = Goss R | title = Substrate specificity of the violaxanthin de-epoxidase of the primitive green alga Mantoniella squamata (Prasinophyceae) | journal = Planta | volume = 217 | issue = 5 | pages = 801–12 | date = September 2003 | pmid = 12748855 | doi = 10.1007/s00425-003-1044-1 }}
7. ^{{cite journal | vauthors = Latowski D, Akerlund HE, Strzałka K | title = Violaxanthin de-epoxidase, the xanthophyll cycle enzyme, requires lipid inverted hexagonal structures for its activity | journal = Biochemistry | volume = 43 | issue = 15 | pages = 4417–20 | date = April 2004 | pmid = 15078086 | doi = 10.1021/bi049652g }}

External links

  • {{MeshName|Violaxanthin+de-epoxidase}}
{{Diphenol family oxidoreductases}}{{Enzymes}}{{Portal bar|Molecular and Cellular Biology|border=no}}

1 : EC 1.10.99

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