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The Necessity of NEDD8/Rub1 for Vitality and Its Association with Mitochondria-derived Oxidative Stress

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Journal Redox Biol
Date 2020 Oct 25
PMID 33099217
Citations 8
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Abstract

Access of molecular oxygen to the respiratory electron transport chain at the mitochondria costs in the generation of reactive oxygen-derived species (ROS). ROS induces progressive damage to macromolecules in all living cells, hence, rapid defense mechanisms to maintain cellular redox homeostasis are vital. NEDD8/Rub1 is a highly conserved ubiquitin-like modifier that has recently been identified as a key regulator of cellular redox homeostasis. In this review, I will present NEDD8/Rub1, its modification cascade of enzymes, substrates and hydrolases. After introduction, I will show that the NEDD8/Rub1 pathway is linked with mitochondria physiology, namely, oxidative stress. In the rest of the review, I will approach the Ascomycota phylum of the kingdom fungi instrumentally, to present existing links between NEDD8/Rub1 vitality and the aerobic lifestyle of model species belonging to three subphyla: Saccharomycotina (S. cerevisiae and C. albicans), Pezizomycotina (A. nidulans and N. crassa), and Taphrinomycotina (S. pombe).

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