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- W2270473048 endingPage "271" @default.
- W2270473048 startingPage "246" @default.
- W2270473048 abstract "The functional group of cysteine is a thiol group (SH) that, due to its chemical reactivity, is able to undergo a wide array of modifications each with the potential to confer a different property or function to the molecule harboring this residue. Most of these modifications involve the reversible oxidation of the thiol to sulfenic acid (SOH), and disulfide, including intra- and intermolecular disulfides between polypeptides and glutathione (glutathionylation). The reversibility of these oxidations allows thiol groups to serve as versatile chemical and structural transducing elements in several low molecular mass metabolites and proteins. A plethora of cellular functions such as DNA and protein synthesis, protein secretion, cytoskeleton architecture, differentiation, apoptosis, and anti-oxidant defense, are recognized to be modulated, at certain stage, by thiol-disulfide exchange mechanisms of redox active thiol groups. All organisms are equipped with enzymatic systems composed by NADPH-dependent reductases, redoxins, and peroxidases that provide kinetic control of global thiol-redox homeostasis as well as target selectivity. These redox systems are distributed in different subcellular compartments and are not in equilibrium with each other. In consequence, measuring cellular thiol-disulfide status represents a challenge for studies aimed to obtain dynamic and spatio-temporal resolution. This review provides a summary of the methods and tools available to quantify the thiol redox status of cells." @default.
- W2270473048 created "2016-06-24" @default.
- W2270473048 creator A5026701214 @default.
- W2270473048 date "2016-01-21" @default.
- W2270473048 modified "2023-10-14" @default.
- W2270473048 title "Measurement and meaning of cellular thiol:disufhide redox status" @default.
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