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Violaxanthin de-epoxidase, the xanthophyll cycle enzyme, requires lipid inverted hexagonal structures for its activity

Latowski, D; Åkerlund, Hans-Erik LU and Strzalka, K (2004) In Biochemistry 43(15). p.4417-4420
Abstract
Bilayer-forming lipids were shown to be ineffective in sustaining the enzymatic activity of violaxanthin de-epoxidase. On the other hand, non-bilayer-forming lipids, regard-less of their different chemical character, ensured high activity of violaxanthin de-epoxidase, resulting in conversion of violaxanthin to zeaxanthin. Our data indicates that the presence of lipids forming reversed hexagonal structures is necessary for violaxanthin de-epoxidase activity and this activity is dependent on the degree of unsaturation of the fatty acids. The significance of the reversed hexagonal phase domains in the conversion of violaxanthin into zeaxanthin in model systems and in the native thylakoid membranes is discussed.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biochemistry
volume
43
issue
15
pages
4417 - 4420
publisher
The American Chemical Society
external identifiers
  • pmid:15078086
  • wos:000220812900001
  • scopus:2942700872
ISSN
0006-2960
DOI
10.1021/bi049652g
language
English
LU publication?
yes
id
87c3d5ef-8b5c-4b60-a466-09ab23e44478 (old id 138600)
date added to LUP
2007-07-06 09:30:27
date last changed
2017-04-02 03:35:23
@article{87c3d5ef-8b5c-4b60-a466-09ab23e44478,
  abstract     = {Bilayer-forming lipids were shown to be ineffective in sustaining the enzymatic activity of violaxanthin de-epoxidase. On the other hand, non-bilayer-forming lipids, regard-less of their different chemical character, ensured high activity of violaxanthin de-epoxidase, resulting in conversion of violaxanthin to zeaxanthin. Our data indicates that the presence of lipids forming reversed hexagonal structures is necessary for violaxanthin de-epoxidase activity and this activity is dependent on the degree of unsaturation of the fatty acids. The significance of the reversed hexagonal phase domains in the conversion of violaxanthin into zeaxanthin in model systems and in the native thylakoid membranes is discussed.},
  author       = {Latowski, D and Åkerlund, Hans-Erik and Strzalka, K},
  issn         = {0006-2960},
  language     = {eng},
  number       = {15},
  pages        = {4417--4420},
  publisher    = {The American Chemical Society},
  series       = {Biochemistry},
  title        = {Violaxanthin de-epoxidase, the xanthophyll cycle enzyme, requires lipid inverted hexagonal structures for its activity},
  url          = {http://dx.doi.org/10.1021/bi049652g},
  volume       = {43},
  year         = {2004},
}