Characterization of the bZip-Type Transcription Factor NapA with Reference to Oxidative Stress Response inAspergillus nidulans

2007 ◽  
Vol 71 (7) ◽  
pp. 1800-1803 ◽  
Author(s):  
Yoshihiro ASANO ◽  
Daisuke HAGIWARA ◽  
Takafumi YAMASHINO ◽  
Takeshi MIZUNO
Keyword(s):  
Oxidative Stress ◽  
Transcription Factor ◽  
Stress Response ◽  
Oxidative Stress Response

scholarly journals PICH, an ATP-dependent chromatin remodeling protein, transcriptionally co-regulates oxidative stress response.

2021 ◽  
Author(s):  
Anindita Dutta ◽  
Apurba Das ◽  
Deep Bisht ◽  
Vijendra Arya ◽  
Rohini Muthuswami
Keyword(s):  
Oxidative Stress ◽  
Transcription Factor ◽  
Transcriptional Regulation ◽  
Stress Response ◽  
Chromatin Remodeling ◽  
Dna Sequences ◽  
Target Genes ◽  
Antioxidant Response ◽  
Oxidative Stress Response ◽  
Antioxidant Genes

Cells respond to oxidative stress by elevating the levels of antioxidants, signaling, and transcriptional regulation often implemented by chromatin remodeling proteins.  The study presented in this paper shows that the expression of PICH, an ATP-dependent chromatin remodeler, is upregulated during oxidative stress in HeLa cells. We also show that PICH regulates the expression of Nrf2, a transcription factor regulating antioxidant response, both in the absence and presence of oxidative stress. In turn, Nrf2 regulates the expression of PICH in the presence of oxidative stress. Both PICH and Nrf2 together regulate the expression of antioxidant genes and this transcriptional regulation is dependent on the ATPase activity of PICH. In addition, H3K27ac modification also plays a role in activating transcription in the presence of oxidative stress. Co-immunoprecipitation experiments show that PICH and Nrf2 interact with H3K27ac in the presence of oxidative stress. Mechanistically, PICH recognizes ARE sequences present on its target genes and introduces a conformational change to the DNA sequences leading us to hypothesize that PICH regulates transcription by remodeling DNA. PICH ablation leads to reduced expression of Nrf2 and impaired antioxidant response leading to increased ROS content, thus, showing PICH is essential for the cell to respond to oxidative stress.

scholarly journals The transcription factor, Nuclear factor, erythroid 2 (Nfe2), is a regulator of the oxidative stress response during Danio rerio development

2016 ◽  
Vol 180 ◽  
pp. 141-154 ◽  
Author(s):  
Larissa M. Williams ◽  
Briony A. Lago ◽  
Andrew G. McArthur ◽  
Amogelang R. Raphenya ◽  
Nicholas Pray ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Transcription Factor ◽  
Stress Response ◽  
Danio Rerio ◽  
Oxidative Stress Response ◽  
Nuclear Factor ◽  
Transcription Factor Nuclear Factor

Characterization of Trypanosoma cruzi MutY DNA glycosylase ortholog and its role in oxidative stress response

2017 ◽  
Vol 55 ◽  
pp. 332-342 ◽  
Author(s):  
Marianna Kunrath-Lima ◽  
Bruno Marçal Repolês ◽  
Ceres Luciana Alves ◽  
Carolina Furtado ◽  
Matheus Andrade Rajão ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Stress Response ◽  
Trypanosoma Cruzi ◽  
Oxidative Stress Response ◽  
Dna Glycosylase
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