>tr|X5EIR3|X5EIR3_STAAU Peptide methionine sulfoxide reductase MsrB OS=Staphylococcus aureus GN=msrB MLKKDKSELTDIEYIVTQENGTEPPFMNEYWNHFAKGIYVDKISGKPLFTSEEKFHSECG WPSFSKALDDDEIIELVDKSFGMLRTEVRSEESNSHLGHVFNDGPKESGGLRYCINSAAI QFIPYEKLEELGYGDLISHFDK