>sp|B6IBJ9|MSRB_ECOSE Peptide methionine sulfoxide reductase MsrB OS=Escherichia coli GN=msrB MANKPSAEELKKNLSEMQFYVTQNHGTEPPFTGRLLHNKRDGVYHCLICDAPLFHSQTKY DSGCGWPSFYEPVSEESIRYIKDLSHGMQRIEIRCGNCDAHLGHVFPDGPQPTGERYCVN SASLRFTDGENGEEING