ID   MSRA_FRASN              Reviewed;         221 AA.
AC   A8L177;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   04-DEC-2007, sequence version 1.
DT   03-AUG-2022, entry version 81.
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=Franean1_0835;
OS   Frankia sp. (strain EAN1pec).
OC   Bacteria; Actinobacteria; Frankiales; Frankiaceae; Frankia;
OC   unclassified Frankia.
OX   NCBI_TaxID=298653;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=EAN1pec;
RX   PubMed=17151343; DOI=10.1101/gr.5798407;
RA   Normand P., Lapierre P., Tisa L.S., Gogarten J.P., Alloisio N.,
RA   Bagnarol E., Bassi C.A., Berry A.M., Bickhart D.M., Choisne N., Couloux A.,
RA   Cournoyer B., Cruveiller S., Daubin V., Demange N., Francino M.P.,
RA   Goltsman E., Huang Y., Kopp O.R., Labarre L., Lapidus A., Lavire C.,
RA   Marechal J., Martinez M., Mastronunzio J.E., Mullin B.C., Niemann J.,
RA   Pujic P., Rawnsley T., Rouy Z., Schenowitz C., Sellstedt A., Tavares F.,
RA   Tomkins J.P., Vallenet D., Valverde C., Wall L.G., Wang Y., Medigue C.,
RA   Benson D.R.;
RT   "Genome characteristics of facultatively symbiotic Frankia sp. strains
RT   reflect host range and host plant biogeography.";
RL   Genome Res. 17:7-15(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; CP000820; ABW10293.1; -; Genomic_DNA.
DR   RefSeq; WP_020458485.1; NC_009921.1.
DR   AlphaFoldDB; A8L177; -.
DR   SMR; A8L177; -.
DR   STRING; 298653.Franean1_0835; -.
DR   EnsemblBacteria; ABW10293; ABW10293; Franean1_0835.
DR   KEGG; fre:Franean1_0835; -.
DR   eggNOG; COG0225; Bacteria.
DR   HOGENOM; CLU_031040_10_3_11; -.
DR   OMA; AGPFYYA; -.
DR   OrthoDB; 1554384at2; -.
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..221
FT                   /note="Peptide methionine sulfoxide reductase MsrA"
FT                   /id="PRO_1000145409"
FT   ACT_SITE        55
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01401"
SQ   SEQUENCE   221 AA;  23536 MW;  DB62547DDD180E11 CRC64;
     MFFGRHKTTL PTADQALPGR GTPIFTGPDR HTVLGASLLG PFPEGLRTAV FGMGCFWGAE
     RKFWQVPGVY STAVGYAGGI TPNPTYEEAC SGLTGHTEAV LVVFDPAKVS FAELLRVFWE
     AHDPTQGMRQ GNDVGTQYRS AVYTTGEDQA AAALASRDAF QRVLTAAGYP EITTEIAPAG
     PFYYAEEYHQ QYLSDAKNPH GYCGLGGTGV SCPVGLASAE S