Methionine-sulfoxide reductase that specifically reduces methionine (R)-sulfoxide back to methionine. While in many cases, methionine oxidation is the result of random oxidation following oxidative stress, methionine oxidation is also a post-translational modification that takes place on specific residue. Acts as a regulator of actin assembly by reducing methionine (R)-sulfoxide mediated by MICALs (MICAL1, MICAL2 or MICAL3) on actin, thereby promoting filament repolymerization. Plays a role in innate immunity by reducing oxidized actin, leading to actin repolymerization in macrophages.

Belongs to the MsrB Met sulfoxide reductase family.

116 amino acids

MSFCSFFGGEVFQNHFEPGVYVCAKCGYELFSSRSKYAHSSPWPAFTETIHADSVAKRPEHNRAEALKVSCGKCGNGLGHEFLNDGPKPGQSRFUIFSSSLKFVPKGKETSASQGH

12.7 kDa

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

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