Part of the MsrPQ system that repairs oxidized periplasmic proteins containing methionine sulfoxide residues (Met-O), using respiratory chain electrons. Thus protects these proteins from oxidative-stress damage caused by reactive species of oxygen and chlorine generated by the host defense mechanisms. MsrPQ is essential for the maintenance of envelope integrity under bleach stress, rescuing a wide series of structurally unrelated periplasmic proteins from methionine oxidation. The catalytic subunit MsrP is non-stereospecific, being able to reduce both (R-) and (S-) diastereoisomers of methionine sulfoxide.

Belongs to the MsrP family.

331 amino acids

MLIKTDRWLRGDDIPASEITPQHLFDQRRRLLAAAALGAAGAALSPWAARRAFAASPAPAWLAAKPNPAYATVEKPTPFDEVTTYNNFYEFGTDKSDPARYAGTLRPHPWQVSVEGLVKAPKTYDLDDLMKMAPMEERIYRLRCVEGWSMVIPWVGFPLAELIRRVEPQGSARYIQFISLADKRQMPGVSSPVLDWPYSEGLRMDEAMHPLVLLTFGLYGQVLPNQNGAPVRVIVPWKYGFKSAKSIVRIRFVDKQPPTSWNIAAPNEYGFYSNVNPSVDHPRWSQATERRIGEDKGGFGGLFAPKRKTLMFNGYDQVASLYTGMDLRKFF

37.3 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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