Peroxiredoxin Systems

The peroxiredoxins represent an important emerging family of sulfhydryl-linked antioxidant proteins, apparently ubiquitously present in all known organisms. The antioxidant function of the peroxiredoxins complements that of other enzymic and non-enzymic systems within the cell. In addition, there is increasing evidence that the peroxiredoxins play a role in cell signalling, by controlling and/or sensing hydrogen peroxide and peroxynitrite levels.