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Results 1 - 6 of 6
EC Number
General Information
Commentary
Reference
physiological function
enzyme induction is the pivotal compensatory protection mechanism against oxidative stress in diabetes or hyperglycaemia
physiological function
exposure of low steady-state levels ofH2O2 to A-549 or wild-type mouse embryonic fibroblast cells does not lead to any significant change in oxidative injury. Loss-of-function studies using sulfiredoxin-depleted A549 and sulfiredoxin -/- cells demonstrate a dramatic increase in extra- and intracellular H2O2, sulfinic 2-Cys peroxiredoxins, and apoptosis. Concomitant with hyperoxidation of mitochondrial peroxiredoxin Prx III, sulfiredoxin-depleted cells show an activation of mitochondria-mediated apoptotic pathways including mitochondria membrane potential collapse, cytochrome c release, and caspase activation
physiological function
mitochondrial H2O2 signaling is controlled by the concerted action of peroxiredoxin III and sulfiredoxin
physiological function
sulfiredoxin Srx1 reactivates the yeast peroxiredoxin Prx1 peroxidase activity that is inactivated by H2O2, whereas it decreases the chaperone activity enhanced by H2O2. Srx1 dissociates the H2O2-induced high molecular weight Prx1 complex, and the Srx1 Cys84 residue is critical for its dissociation
physiological function
sulfiredoxin-1 protects PC-12 cells against oxidative stress induced by hydrogen peroxide
physiological function
the antioxidant function of 2-Cys peroxiredoxin, Prx, EC 1.11.1.15, involves the oxidation of its conserved peroxidatic cysteine to sulfinic acid that is recycled by a reductor agent. Sulfiredoxin reduces the sulfinic 2-Cys Prx, Prx-SO2H. The activity of sulfiredoxin is dependent on the concentration of the sulfinic form of Prx and the conserved Srx is capable of regenerating the functionality of both pea and Arabidopsis Prx-SO2H
Results 1 - 6 of 6