ID   MSRA_MYCUA              Reviewed;         171 AA.
AC   A0PWH2;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 1.
DT   03-AUG-2022, entry version 91.
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=MUL_4773;
OS   Mycobacterium ulcerans (strain Agy99).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium.
OX   NCBI_TaxID=362242;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Agy99;
RX   PubMed=17210928; DOI=10.1101/gr.5942807;
RA   Stinear T.P., Seemann T., Pidot S., Frigui W., Reysset G., Garnier T.,
RA   Meurice G., Simon D., Bouchier C., Ma L., Tichit M., Porter J.L., Ryan J.,
RA   Johnson P.D.R., Davies J.K., Jenkin G.A., Small P.L.C., Jones L.M.,
RA   Tekaia F., Laval F., Daffe M., Parkhill J., Cole S.T.;
RT   "Reductive evolution and niche adaptation inferred from the genome of
RT   Mycobacterium ulcerans, the causative agent of Buruli ulcer.";
RL   Genome Res. 17:192-200(2007).
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; CP000325; ABL06691.1; -; Genomic_DNA.
DR   RefSeq; WP_011742283.1; NC_008611.1.
DR   AlphaFoldDB; A0PWH2; -.
DR   SMR; A0PWH2; -.
DR   STRING; 362242.MUL_4773; -.
DR   EnsemblBacteria; ABL06691; ABL06691; MUL_4773.
DR   KEGG; mul:MUL_4773; -.
DR   eggNOG; COG0225; Bacteria.
DR   HOGENOM; CLU_031040_10_2_11; -.
DR   OMA; GYCAFVV; -.
DR   Proteomes; UP000000765; 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..171
FT                   /note="Peptide methionine sulfoxide reductase MsrA"
FT                   /id="PRO_1000068345"
FT   ACT_SITE        13
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01401"
SQ   SEQUENCE   171 AA;  19205 MW;  D888F4FD0C5754FE CRC64;
     MTSPQKAILA GGCFWGMQDL IRKQPGVIAT RVGYSGGDVA NATYRNHGTH AEAVEIIFDP
     QATDYRTLLE FFFQIHDPTT PNRQGNDRGT SYRSAIYYLD DEQKRVALDT IADVEASGLW
     PGKVVTEVSP AGDFWEAEPE HQHYLQRYPS GYTCHFIRPG WKLPRRATAG Q