label: peptide-methionine (R)-S-oxide reductase activity
label_lc: peptide-methionine (r)-s-oxide reductase activity
description: "Catalysis of the reaction: peptide-L-methionine + H2O + thioredoxin disulfide = peptide-L-methionine (R)-S-oxide + thioredoxin. Can act on oxidized methionine in peptide linkage with specificity for the R enantiomer. Thioredoxin disulfide is the oxidized form of thioredoxin."