Abstract
Brassica juncea annexin-3 (BjAnn3) was functionally characterized for its ability to modulate H2O2-mediated oxidative stress in Saccharomyces cerevisiae. BjAnn3 showed a significant protective role in cellular-defense against oxidative stress and partially alleviated inhibition of mitochondrial respiration in presence of exogenously applied H 2O2. Heterologous expression of BjAnn3 protected membranes from oxidative stress-mediated damage and positively regulated antioxidant gene expression for ROS detoxification. We conclude that, BjAnn3 partially counteracts the effects of thioredoxin peroxidase 1 (TSA1) deficiency and aids in cellular-protection across kingdoms. Despite partial compensation of TSA1 by BjAnn3 in cell-viability tests, the over-complementation in ROS-related features suggests the existence of both redundant (e.g. ROS detoxification) and distinct features (e.g. membrane protection versus proximity-based redox regulator) of both proteins.
Original language | English |
---|---|
Pages (from-to) | 584-593 |
Number of pages | 10 |
Journal | FEBS Letters |
Volume | 588 |
Issue number | 4 |
DOIs | |
State | Published - 14 Feb 2014 |
Externally published | Yes |
Keywords
- Brassica juncea annexin-3
- Complementation
- Cross talk
- Oxidative stress
- Saccharomyces cerevisiae
- Thioredoxin peroxidase 1
All Science Journal Classification (ASJC) codes
- Genetics
- Molecular Biology
- Biophysics
- Structural Biology
- Biochemistry
- Cell Biology