ID   MSRA_PSEE4              Reviewed;         222 AA.
AC   Q1I3L0;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2006, sequence version 1.
DT   03-AUG-2022, entry version 92.
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}; OrderedLocusNames=PSEEN5148;
OS   Pseudomonas entomophila (strain L48).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=384676;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=L48;
RX   PubMed=16699499; DOI=10.1038/nbt1212;
RA   Vodovar N., Vallenet D., Cruveiller S., Rouy Z., Barbe V., Acosta C.,
RA   Cattolico L., Jubin C., Lajus A., Segurens B., Vacherie B., Wincker P.,
RA   Weissenbach J., Lemaitre B., Medigue C., Boccard F.;
RT   "Complete genome sequence of the entomopathogenic and metabolically
RT   versatile soil bacterium Pseudomonas entomophila.";
RL   Nat. Biotechnol. 24:673-679(2006).
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; CT573326; CAK17776.1; -; Genomic_DNA.
DR   RefSeq; WP_011536135.1; NC_008027.1.
DR   AlphaFoldDB; Q1I3L0; -.
DR   SMR; Q1I3L0; -.
DR   STRING; 384676.PSEEN5148; -.
DR   EnsemblBacteria; CAK17776; CAK17776; PSEEN5148.
DR   KEGG; pen:PSEEN5148; -.
DR   eggNOG; COG0225; Bacteria.
DR   HOGENOM; CLU_031040_10_3_6; -.
DR   OMA; AGPFYYA; -.
DR   OrthoDB; 1554384at2; -.
DR   Proteomes; UP000000658; Chromosome.
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.
FT   CHAIN           1..222
FT                   /note="Peptide methionine sulfoxide reductase MsrA"
FT                   /id="PRO_1000068351"
FT   ACT_SITE        60
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01401"
SQ   SEQUENCE   222 AA;  24491 MW;  8D021FCE161AA158 CRC64;
     MVLRSEILVN KNVLPTAEQA LPGRETPMAL PEFHYVFEGT PLLGPFFEGD IDFAIFALGC
     FWGAERRFWQ REGVVSTVVG YAGGFTPNPT YEEVCSGLTG HTEVVLVVFD KNKVSYHDLL
     TMFWELHNPT QGMRQGNDVG TQYRSAIYCT SPQQLEEAKT SRDAFQAELS KAGFGEITTE
     IAQAPTVYFA EAYHQQYLAK NPDGYCGIGG TGVCLPPSLQ GN