L-methionine_(R)-S-oxide_reductase

L-methionine (R)-S-oxide reductase

L-methionine (R)-S-oxide reductase

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In enzymology, a L-methionine (R)-S-oxide reductase (EC 1.8.4.14) is an enzyme that catalyzes the chemical reaction

L-methionine + thioredoxin disulfide + H2O L-methionine (R)-S-oxide + thioredoxin
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The 3 substrates of this enzyme are L-methionine, thioredoxin disulfide, and H2O, whereas its two products are L-methionine (R)-S-oxide and thioredoxin.

This enzyme belongs to the family of oxidoreductases, specifically those acting on a sulfur group of donors with a disulfide as acceptor. The systematic name of this enzyme class is L-methionine:thioredoxin-disulfide S-oxidoreductase [L-methionine (R)-S-oxide-forming]. Other names in common use include fRMsr, FRMsr, free met-R-(o) reductase, and free-methionine (R)-S-oxide reductase. This enzyme participates in methionine metabolism.

References

    • Etienne F, Spector D, Brot N, Weissbach H (2003). "A methionine sulfoxide reductase in Escherichia coli that reduces the R enantiomer of methionine sulfoxide". Biochem. Biophys. Res. Commun. 300 (2): 378–82. doi:10.1016/S0006-291X(02)02870-X. PMID 12504094.


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