Kinetic studies of peroxiredoxin 6 from Arenicola marina: Rapid oxidation by 3 hydrogen peroxide and peroxynitrite but lack of reduction by hydrogen sulfide
, respectively, at pH 7.4 and 25°C. Reduction of tert-butyl hydroperoxide was slower. 34 The pK a of the peroxidatic thiol of AmPrx6 was determined as 5
