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Crystal structure of Arabidopsis thaliana peroxiredoxin A C119S mutant.

Acta Crystallogr F Struct Biol Commun. 2018 Oct 01;74(Pt 10):625-631. Epub 2018 Sep 19
Ye Yang 1 , Wenguang Cai 1 , Junchao Wang 1 , Weimin Pan 1 , Lin Liu 1 , Mingzhu Wang 2 , Min Zhang 1
Ye Yang 1 , Wenguang Cai 1 , Junchao Wang 1 , Weimin Pan 1 , Lin Liu 1 , Mingzhu Wang 2 , Min Zhang 1
+ et al

[No authors listed]

Author information
  • 1 School of Life Sciences, Anhui University, 111 Jiulong Road, Hefei, Anhui 230601, People's Republic of China.
  • 2 Institute of Physical Science and Information Technology, Anhui University, 111 Jiulong Road, Hefei, Anhui 230601, People's Republic of China.

摘要

Peroxiredoxins (Prxs), a large family of antioxidant enzymes, are abundant in all living organisms. Peroxiredoxin A (PrxA) from Arabidopsis thaliana belongs to the typical 2-Cys Prx family and is localized in the chloroplast. This article reports the crystal structure of a PrxA C119S mutant refined to 2.6 Å resolution. The protein exists as a decamer both in the crystal structure and in solution. The structure is in the reduced state suitable for the approach of peroxide, though conformational changes are needed for the resolving process.

KEYWORDS: Arabidopsis thaliana, chloroplast thioredoxin systems, oxidative and photo-oxidative stress, peroxiredoxin A, peroxiredoxins, redox regulation

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