ID   MSRA_BACLD              Reviewed;         181 AA.
AC   Q65ID1; Q62TT2;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2004, sequence version 1.
DT   03-AUG-2022, entry version 102.
DE   RecName: Full=Peptide methionine sulfoxide reductase MsrA {ECO:0000255|HAMAP-Rule:MF_01401};
DE            Short=Protein-methionine-S-oxide reductase {ECO:0000255|HAMAP-Rule:MF_01401};
DE            EC=1.8.4.11 {ECO:0000255|HAMAP-Rule:MF_01401};
DE   AltName: Full=Peptide-methionine (S)-S-oxide reductase {ECO:0000255|HAMAP-Rule:MF_01401};
DE            Short=Peptide Met(O) reductase {ECO:0000255|HAMAP-Rule:MF_01401};
GN   Name=msrA {ECO:0000255|HAMAP-Rule:MF_01401};
GN   OrderedLocusNames=BLi02303, BL01421;
OS   Bacillus licheniformis (strain ATCC 14580 / DSM 13 / JCM 2505 / CCUG 7422 /
OS   NBRC 12200 / NCIMB 9375 / NCTC 10341 / NRRL NRS-1264 / Gibson 46).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus.
OX   NCBI_TaxID=279010;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 14580 / DSM 13 / JCM 2505 / CCUG 7422 / NBRC 12200 / NCIMB 9375
RC   / NCTC 10341 / NRRL NRS-1264 / Gibson 46;
RX   PubMed=15383718; DOI=10.1159/000079829;
RA   Veith B., Herzberg C., Steckel S., Feesche J., Maurer K.H., Ehrenreich P.,
RA   Baeumer S., Henne A., Liesegang H., Merkl R., Ehrenreich A., Gottschalk G.;
RT   "The complete genome sequence of Bacillus licheniformis DSM13, an organism
RT   with great industrial potential.";
RL   J. Mol. Microbiol. Biotechnol. 7:204-211(2004).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 14580 / DSM 13 / JCM 2505 / CCUG 7422 / NBRC 12200 / NCIMB 9375
RC   / NCTC 10341 / NRRL NRS-1264 / Gibson 46;
RX   PubMed=15461803; DOI=10.1186/gb-2004-5-10-r77;
RA   Rey M.W., Ramaiya P., Nelson B.A., Brody-Karpin S.D., Zaretsky E.J.,
RA   Tang M., Lopez de Leon A., Xiang H., Gusti V., Clausen I.G., Olsen P.B.,
RA   Rasmussen M.D., Andersen J.T., Joergensen P.L., Larsen T.S., Sorokin A.,
RA   Bolotin A., Lapidus A., Galleron N., Ehrlich S.D., Berka R.M.;
RT   "Complete genome sequence of the industrial bacterium Bacillus
RT   licheniformis and comparisons with closely related Bacillus species.";
RL   Genome Biol. 5:R77.1-R77.12(2004).
CC   -!- FUNCTION: Has an important function as a repair enzyme for proteins
CC       that have been inactivated by oxidation. Catalyzes the reversible
CC       oxidation-reduction of methionine sulfoxide in proteins to methionine.
CC       {ECO:0000255|HAMAP-Rule:MF_01401}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[thioredoxin]-disulfide + H2O + L-methionyl-[protein] =
CC         [thioredoxin]-dithiol + L-methionyl-(S)-S-oxide-[protein];
CC         Xref=Rhea:RHEA:14217, Rhea:RHEA-COMP:10698, Rhea:RHEA-COMP:10700,
CC         Rhea:RHEA-COMP:12313, Rhea:RHEA-COMP:12315, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:16044, ChEBI:CHEBI:29950, ChEBI:CHEBI:44120,
CC         ChEBI:CHEBI:50058; EC=1.8.4.11; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01401};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[thioredoxin]-disulfide + H2O + L-methionine = [thioredoxin]-
CC         dithiol + L-methionine (S)-S-oxide; Xref=Rhea:RHEA:19993, Rhea:RHEA-
CC         COMP:10698, Rhea:RHEA-COMP:10700, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:29950, ChEBI:CHEBI:50058, ChEBI:CHEBI:57844,
CC         ChEBI:CHEBI:58772; EC=1.8.4.11; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01401};
CC   -!- SIMILARITY: Belongs to the MsrA Met sulfoxide reductase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01401}.
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DR   EMBL; CP000002; AAU23827.2; -; Genomic_DNA.
DR   EMBL; AE017333; AAU41183.1; -; Genomic_DNA.
DR   RefSeq; WP_011198056.1; NC_006322.1.
DR   AlphaFoldDB; Q65ID1; -.
DR   SMR; Q65ID1; -.
DR   STRING; 279010.BL01421; -.
DR   EnsemblBacteria; AAU23827; AAU23827; BL01421.
DR   KEGG; bld:BLi02303; -.
DR   KEGG; bli:BL01421; -.
DR   PATRIC; fig|279010.13.peg.2327; -.
DR   eggNOG; COG0225; Bacteria.
DR   HOGENOM; CLU_031040_10_1_9; -.
DR   OMA; AGPFYYA; -.
DR   OrthoDB; 1554384at2; -.
DR   BioCyc; BLIC279010:BLI_RS11430-MON; -.
DR   Proteomes; UP000000606; Chromosome.
DR   Bgee; BL01421; Expressed in ovary and 11 other tissues.
DR   GO; GO:0033744; F:L-methionine:thioredoxin-disulfide S-oxidoreductase activity; IEA:RHEA.
DR   GO; GO:0008113; F:peptide-methionine (S)-S-oxide reductase activity; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.1060.10; -; 1.
DR   HAMAP; MF_01401; MsrA; 1.
DR   InterPro; IPR002569; Met_Sox_Rdtase_MsrA_dom.
DR   InterPro; IPR036509; Met_Sox_Rdtase_MsrA_sf.
DR   Pfam; PF01625; PMSR; 1.
DR   SUPFAM; SSF55068; SSF55068; 1.
DR   TIGRFAMs; TIGR00401; msrA; 1.
PE   3: Inferred from homology;
KW   Oxidoreductase; Reference proteome.
FT   CHAIN           1..181
FT                   /note="Peptide methionine sulfoxide reductase MsrA"
FT                   /id="PRO_1000068310"
FT   ACT_SITE        14
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01401"
SQ   SEQUENCE   181 AA;  21007 MW;  2AC49AEE0842B3C9 CRC64;
     MAEKRELATF AGGCFWCMVK PFDEQPGILK VESGYTGGHT ENPTYEEVCS NTTGHREAVQ
     ITFDPDVFPY EKLLELYWQQ IDPTDSGGQF TDRGESYRTA IFYHNDKQRK LAEESKKKLG
     ESGIFKDPIA TDILEAGPFY PAEEYHQDYH KKHPERYTQY RIGSGREGFL QQHWGRKHDE
     Q