PRDX6 and infection: Further studies indicated that, unlike the Serine 32 to Alanine (S32A) mutation, the Serine 32 to Threonine (S32T) mutation did not abolish the PLA2 activity of the Prdx6 in recombinant protein produced in E. coli nor in recombinant protein produced in mammalian cells by infection with lentiviral constructs.