Catalyzes the reduction of methionine sulfoxide (MetSO) to methionine in proteins. Specifically reduces the MetSO R-enantiomer. Plays a protective role against oxidative stress by restoring activity to proteins that have been inactivated by methionine oxidation. May play an essential function in association with MSRB2 in maintaining vegetative growth during environmental constraints, through the preservation of photosynthetic antennae. MSRB1 and MSRB2 account for most of the leaf peptide MSR capacity.

Belongs to the MsrB Met sulfoxide reductase family.

202 amino acids

MASSTRLTIIQSSFVSARTRLNYVSKTNHSGFACRSLSKPRNLSLSVYSMGSSSSSPKPDNVQEAEKNEFASLSENEWKKRLTPEQYYITRQKGTERAFTGEYWNSKTPGVYNCVCCDTPLFDSSTKFDSGTGWPSYYQPIGNNVKTKLDLSIIFMPRQEVVCAVCNAHLGHVFDDGPRPTGKRYCLNSAALKLNALEKTRD

22.6 kDa

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

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