Special Issue "Thioredoxin and Glutaredoxin Systems"
Deadline for manuscript submissions: closed (30 September 2018).
A printed edition of this Special Issue is available here.
Interests: carbon metabolism; redox homeostasis; thiol-dependent post-transalational modifications
Special Issues and Collections in MDPI journals
The thioredoxin and glutaredoxin systems are the two key regulators of the redox status of the cell. They can back up one another in a wide variety of reactions including ribonucleotide reduction, historically the first reaction that led to their discovery. In addition they are required for sulfate assimlation, the repair of oxidized proteins and lipids, peroxide detoxification, the regulation of transcription factors and the regulation of key enzymes of the CO2 fixation pathways in plants. Most organisms contain several genes coding for thioredoxin or glutaredoxin ranging from a handful in bacteria and mammals to ca forty genes each in photosynthetic eukaryotes. Likewise, the mode of reduction of these proteins is very varied, glutaredoxins being generally reduced by glutathione (from NADPH and glutathione reductase) and thioredoxin by a variety of reductases, either flavoenzymes containg selenocysteine or not and dependent on NADPH, or ferredoxin dependent enzymes in higher plants. Some microrganisms (e.g., Trypanosoma) contain alternative systems called tryparedoxins structurally related to the thioredoxin fold but with unique properties. Recent developments in the study of these redox systems concern the requirement for glutaredoxin in some steps of iron sulfur centers assembly and the mechanisms of aging in various biological organisms. Of particular interest, the combination of mutations on several of these genes leads to lethal phenotypes in many organisms and some genetic diseases result from similar mutations.
This Special Issue welcomes original research papers and reviews to expand our understanding and perspective on all aspects linked to redox homeostasis via the thioredoxin and glutaredoxin systems. Special interests include structure function analysis of the components of these systems, the roles of glutaredoxins in iron sulfur assembly, the role of thioredoxin in aging, the generation and use of redox fluorescent probes and of knock-out mutants of selected targets. Studies concerning thioredoxin or glutaredoxin-dependent enzymes are also most welcome as well as phylogenetic studies concerning these systems and their development.Prof. Jean-Pierre Jacquot
Manuscript Submission Information
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- Redox regulation
- Thioredoxin reductase
- Reactive oxygen species (ROS)
- Reactive nitrogen species (RNS)
- CO2 fixation
- Iron sulfur assembly