Contributes to oxidative stress resistance by reducing cysteine-sulfinic acid formed under exposure to oxidants in the peroxiredoxins PRDX1, PRDX2, PRDX3 and PRDX4. Does not act on PRDX5 or PRDX6. May catalyze the reduction in a multi-step process by acting both as a specific phosphotransferase and a thioltransferase.
Zhang, He, Guo, Li, Wang, Yang, Cui: "Sulfiredoxin-1 protects against simulated ischaemia/reperfusion injury in cardiomyocyte by inhibiting PI3K/AKT-regulated mitochondrial apoptotic pathways." in: Bioscience reports, Vol. 36, Issue 2, (2016) (PubMed).
Zhou, Zhou, Yu, Wu, Chen, Zhao et al.: "Sulfiredoxin-1 exerts anti-apoptotic and neuroprotective effects against oxidative stress-induced injury in rat cortical astrocytes following exposure to oxygen-glucose deprivation and hydrogen ..." in: International journal of molecular medicine, Vol. 36, Issue 1, pp. 43-52, (2015) (PubMed).
Jönsson, Johnson, Lowther: "Structure of the sulphiredoxin-peroxiredoxin complex reveals an essential repair embrace." in: Nature, Vol. 451, Issue 7174, pp. 98-101, (2008) (PubMed).