ID   MSRB_AZOVD              Reviewed;         133 AA.
AC   C1DRM1;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   26-MAY-2009, sequence version 1.
DT   03-AUG-2022, entry version 69.
DE   RecName: Full=Peptide methionine sulfoxide reductase MsrB {ECO:0000255|HAMAP-Rule:MF_01400};
DE            EC=1.8.4.12 {ECO:0000255|HAMAP-Rule:MF_01400};
DE   AltName: Full=Peptide-methionine (R)-S-oxide reductase {ECO:0000255|HAMAP-Rule:MF_01400};
GN   Name=msrB {ECO:0000255|HAMAP-Rule:MF_01400}; OrderedLocusNames=Avin_15440;
OS   Azotobacter vinelandii (strain DJ / ATCC BAA-1303).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Azotobacter.
OX   NCBI_TaxID=322710;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DJ / ATCC BAA-1303;
RX   PubMed=19429624; DOI=10.1128/jb.00504-09;
RA   Setubal J.C., Dos Santos P., Goldman B.S., Ertesvaag H., Espin G.,
RA   Rubio L.M., Valla S., Almeida N.F., Balasubramanian D., Cromes L.,
RA   Curatti L., Du Z., Godsy E., Goodner B., Hellner-Burris K., Hernandez J.A.,
RA   Houmiel K., Imperial J., Kennedy C., Larson T.J., Latreille P., Ligon L.S.,
RA   Lu J., Maerk M., Miller N.M., Norton S., O'Carroll I.P., Paulsen I.,
RA   Raulfs E.C., Roemer R., Rosser J., Segura D., Slater S., Stricklin S.L.,
RA   Studholme D.J., Sun J., Viana C.J., Wallin E., Wang B., Wheeler C., Zhu H.,
RA   Dean D.R., Dixon R., Wood D.;
RT   "Genome sequence of Azotobacter vinelandii, an obligate aerobe specialized
RT   to support diverse anaerobic metabolic processes.";
RL   J. Bacteriol. 191:4534-4545(2009).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[thioredoxin]-disulfide + H2O + L-methionyl-[protein] =
CC         [thioredoxin]-dithiol + L-methionyl-(R)-S-oxide-[protein];
CC         Xref=Rhea:RHEA:24164, Rhea:RHEA-COMP:10698, Rhea:RHEA-COMP:10700,
CC         Rhea:RHEA-COMP:12313, Rhea:RHEA-COMP:12314, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:16044, ChEBI:CHEBI:29950, ChEBI:CHEBI:45764,
CC         ChEBI:CHEBI:50058; EC=1.8.4.12; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01400};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01400};
CC       Note=Binds 1 zinc ion per subunit. The zinc ion is important for the
CC       structural integrity of the protein. {ECO:0000255|HAMAP-Rule:MF_01400};
CC   -!- SIMILARITY: Belongs to the MsrB Met sulfoxide reductase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01400}.
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DR   EMBL; CP001157; ACO77759.1; -; Genomic_DNA.
DR   RefSeq; WP_012700175.1; NC_012560.1.
DR   AlphaFoldDB; C1DRM1; -.
DR   SMR; C1DRM1; -.
DR   STRING; 322710.Avin_15440; -.
DR   EnsemblBacteria; ACO77759; ACO77759; Avin_15440.
DR   KEGG; avn:Avin_15440; -.
DR   eggNOG; COG0229; Bacteria.
DR   HOGENOM; CLU_031040_8_5_6; -.
DR   OMA; DEQWRAE; -.
DR   OrthoDB; 1650261at2; -.
DR   Proteomes; UP000002424; Chromosome.
DR   GO; GO:0033743; F:peptide-methionine (R)-S-oxide reductase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0030091; P:protein repair; IEA:InterPro.
DR   GO; GO:0006979; P:response to oxidative stress; IEA:InterPro.
DR   HAMAP; MF_01400; MsrB; 1.
DR   InterPro; IPR028427; Met_Sox_Rdtase_MsrB.
DR   InterPro; IPR002579; Met_Sox_Rdtase_MsrB_dom.
DR   InterPro; IPR011057; Mss4-like_sf.
DR   PANTHER; PTHR10173; PTHR10173; 1.
DR   Pfam; PF01641; SelR; 1.
DR   SUPFAM; SSF51316; SSF51316; 1.
DR   TIGRFAMs; TIGR00357; TIGR00357; 1.
DR   PROSITE; PS51790; MSRB; 1.
PE   3: Inferred from homology;
KW   Metal-binding; Oxidoreductase; Zinc.
FT   CHAIN           1..133
FT                   /note="Peptide methionine sulfoxide reductase MsrB"
FT                   /id="PRO_1000215170"
FT   DOMAIN          8..130
FT                   /note="MsrB"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   ACT_SITE        119
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   BINDING         47
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   BINDING         50
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   BINDING         96
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   BINDING         99
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
SQ   SEQUENCE   133 AA;  14809 MW;  D69A51E966146E96 CRC64;
     MDKLEKSLDV WRELLSDERF RICRLGGTER AFSGEYYATS VPGVYHCACC DAPLFDSDAK
     YDAGCGWPSY FQPVAASALT SRDDYSHGMH RIEVLCARCD AHLGHVFPDG PPPTGLRYCI
     NSASLRLKPR DEG