Serves to protect the cell against DNA damage by alkyl hydroperoxides. It can use either NADH or NADPH as electron donor for direct reduction of redox dyes or of alkyl hydroperoxides when combined with the AhpC protein (By similarity). ahpF PA0140 AHPF_PSEAE MLDANLKTQLKAYLEKVSQPFEIVASLDDSDKSRELLGLLQDIVGLTDKITLKTDGSDARKPSFSLNRPGADIGLRFAGIPMGHEFTSLVLALLQVGGHPSKLDADVIEQVKGIEGTFEFETYFSLSCQNCPDVVQALNLMAVLNPNIRHVAIDGALFQDEVEARQIMSVPSIYLNGEVFGQGRMGVEEILAKIDTGAAARDAEKLTARDAFDVLVVGGGPAGAAAAIYAARKGIRTGVAAERFGGQVLDTMAIENFISVQETEGPKLARALEEHVRHYEVDIMNLQRASKLVPAKNAGELHEVRFESGGSLKAKTLILATGARWREMGVPGEQEYKAKGVCFCPHCDGPLFKGKRVAVIGGGNSGVEAAIDLAGIVAHVTLLEFDSKLRADAVLQRKLYSLPNVEVITSALTSEVKGDGQKVTGLVYKDRNSEEFKSIELEGIFVQIGLLPNTEWLKGSVELSPRGEIIVDARGETSLPGIFAAGDVTTVPYKQIVIAVGEGAKASLSAFDHLIRTSAPE 521 Alkyl hydroperoxide reductase subunit F