ID   MSRA_MYCMM              Reviewed;         171 AA.
AC   B2HLR5;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-JUN-2008, sequence version 1.
DT   03-AUG-2022, entry version 75.
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=MMAR_0347;
OS   Mycobacterium marinum (strain ATCC BAA-535 / M).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium.
OX   NCBI_TaxID=216594;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-535 / M;
RX   PubMed=18403782; DOI=10.1101/gr.075069.107;
RA   Stinear T.P., Seemann T., Harrison P.F., Jenkin G.A., Davies J.K.,
RA   Johnson P.D., Abdellah Z., Arrowsmith C., Chillingworth T., Churcher C.,
RA   Clarke K., Cronin A., Davis P., Goodhead I., Holroyd N., Jagels K.,
RA   Lord A., Moule S., Mungall K., Norbertczak H., Quail M.A.,
RA   Rabbinowitsch E., Walker D., White B., Whitehead S., Small P.L., Brosch R.,
RA   Ramakrishnan L., Fischbach M.A., Parkhill J., Cole S.T.;
RT   "Insights from the complete genome sequence of Mycobacterium marinum on the
RT   evolution of Mycobacterium tuberculosis.";
RL   Genome Res. 18:729-741(2008).
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; CP000854; ACC38814.1; -; Genomic_DNA.
DR   RefSeq; WP_012392330.1; NC_010612.1.
DR   AlphaFoldDB; B2HLR5; -.
DR   SMR; B2HLR5; -.
DR   STRING; 216594.MMAR_0347; -.
DR   EnsemblBacteria; ACC38814; ACC38814; MMAR_0347.
DR   KEGG; mmi:MMAR_0347; -.
DR   eggNOG; COG0225; Bacteria.
DR   HOGENOM; CLU_031040_10_2_11; -.
DR   OMA; GYCAFVV; -.
DR   OrthoDB; 1554384at2; -.
DR   Proteomes; UP000001190; 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; Reference proteome.
FT   CHAIN           1..171
FT                   /note="Peptide methionine sulfoxide reductase MsrA"
FT                   /id="PRO_1000145418"
FT   ACT_SITE        13
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01401"
SQ   SEQUENCE   171 AA;  19183 MW;  D888F4FD009798FE CRC64;
     MTSPQKAILA GGCFWGMQDL IRKQPGVIAT RVGYSGGDVA NATYRNHGTH AEAVEIIFDP
     QATDYRTLLE FFFQIHDPTT PNRQGNDRGT SYRSAIYYLD DEQKRVALDT IADVEASGLW
     PGKVVTEVSP AGDFWEAEPE HQDYLQRYPS GYTCHFIRPG WKLPRRATAG Q