MSRA_NAUPA
ID MSRA_NAUPA Reviewed; 173 AA.
AC B9LA36;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 24-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 84.
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=NAMH_1097;
OS Nautilia profundicola (strain ATCC BAA-1463 / DSM 18972 / AmH).
OC Bacteria; Proteobacteria; Epsilonproteobacteria; Nautiliales; Nautiliaceae;
OC Nautilia.
OX NCBI_TaxID=598659;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1463 / DSM 18972 / AmH;
RX PubMed=19197347; DOI=10.1371/journal.pgen.1000362;
RA Campbell B.J., Smith J.L., Hanson T.E., Klotz M.G., Stein L.Y., Lee C.K.,
RA Wu D., Robinson J.M., Khouri H.M., Eisen J.A., Cary S.C.;
RT "Adaptations to submarine hydrothermal environments exemplified by the
RT genome of Nautilia profundicola.";
RL PLoS Genet. 5:E1000362-E1000362(2009).
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; CP001279; ACM93298.1; -; Genomic_DNA.
DR RefSeq; WP_015902350.1; NC_012115.1.
DR AlphaFoldDB; B9LA36; -.
DR SMR; B9LA36; -.
DR STRING; 598659.NAMH_1097; -.
DR EnsemblBacteria; ACM93298; ACM93298; NAMH_1097.
DR KEGG; nam:NAMH_1097; -.
DR eggNOG; COG0225; Bacteria.
DR HOGENOM; CLU_031040_10_0_7; -.
DR OMA; AGPFYYA; -.
DR OrthoDB; 1554384at2; -.
DR Proteomes; UP000000448; 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..173
FT /note="Peptide methionine sulfoxide reductase MsrA"
FT /id="PRO_1000184568"
FT ACT_SITE 10
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01401"
SQ SEQUENCE 173 AA; 19958 MW; C5F709B1B0E5B1AD CRC64;
MPKAVFGGGC FWCLDAVFRK VDGVRDVVVG YAGGRRPNPN YEQVCTGVTG HAEVVEIDYD
ENTVSYDELL DIFFKIHDPT QLNRQGNDVG TQYRSIILYL DEEQKEKALK KIEELKKEGL
NVVTEVKPLE IFYPAEKYHQ NYFAKNPHQP YCMYVVAPKV EKYLKIKNEN KKT
