Structural modification of NADPH oxidase activator (Noxa 1) by oxidative stress: An experimental and computational study

Pankaj Attri, Jae-Hyun Park, Joey De Backer, Myeongkyu Kim, Ji-Hye Yun, Yunseok Heo, Sylvia Dewilde, Masaharu Shiratani, Eun Ha Choi, Weontae Lee, Annemie Bogaerts

研究成果: Contribution to journalArticle査読

抄録

NADPH oxidases 1 (NOX1) derived reactive oxygen species (ROS) play an important role in the progression of cancer through signaling pathways. Therefore, in this paper, we demonstrate the effect of cold atmospheric plasma (CAP) on the structural changes of Noxa1 SH3 protein, one of the regulatory subunits of NOX1. For this purpose, firstly we purified the Noxa1 SH3 protein and analyzed the structure using X-ray crystallography, and subsequently, we treated the protein with two types of CAP reactors such as pulsed dielectric barrier discharge (DBD) and Soft Jet for different time intervals. The structural deformation of Noxa1 SH3 protein was analyzed by various experimental methods (circular dichroism, fluorescence, and NMR spectroscopy) and by MD simulations. Additionally, we demonstrate the effect of CAP (DBD and Soft Jet) on the viability and expression of NOX1 in A375 cancer cells. Our results are useful to understand the structural modification/oxidation occur in protein due to reactive oxygen and nitrogen (RONS) species generated by CAP.

本文言語英語
ページ(範囲)2405-2414
ジャーナルInternational Journal of Biological Macromolecules
163
DOI
出版ステータス印刷前のE-pub - 9 19 2020

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