ID   MSRB_BURCJ              Reviewed;         143 AA.
AC   B4EBK9;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   03-AUG-2022, entry version 76.
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};
GN   OrderedLocusNames=BceJ2315_19450; ORFNames=BCAL1982;
OS   Burkholderia cenocepacia (strain ATCC BAA-245 / DSM 16553 / LMG 16656 /
OS   NCTC 13227 / J2315 / CF5610) (Burkholderia cepacia (strain J2315)).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Burkholderia; Burkholderia cepacia complex.
OX   NCBI_TaxID=216591;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-245 / DSM 16553 / LMG 16656 / NCTC 13227 / J2315 / CF5610;
RX   PubMed=18931103; DOI=10.1128/jb.01230-08;
RA   Holden M.T., Seth-Smith H.M., Crossman L.C., Sebaihia M., Bentley S.D.,
RA   Cerdeno-Tarraga A.M., Thomson N.R., Bason N., Quail M.A., Sharp S.,
RA   Cherevach I., Churcher C., Goodhead I., Hauser H., Holroyd N., Mungall K.,
RA   Scott P., Walker D., White B., Rose H., Iversen P., Mil-Homens D.,
RA   Rocha E.P., Fialho A.M., Baldwin A., Dowson C., Barrell B.G., Govan J.R.,
RA   Vandamme P., Hart C.A., Mahenthiralingam E., Parkhill J.;
RT   "The genome of Burkholderia cenocepacia J2315, an epidemic pathogen of
RT   cystic fibrosis patients.";
RL   J. Bacteriol. 191:261-277(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; AM747720; CAR52282.1; -; Genomic_DNA.
DR   RefSeq; WP_006483891.1; NC_011000.1.
DR   AlphaFoldDB; B4EBK9; -.
DR   SMR; B4EBK9; -.
DR   STRING; 216591.BCAL1982; -.
DR   EnsemblBacteria; CAR52282; CAR52282; BCAL1982.
DR   GeneID; 56558461; -.
DR   KEGG; bcj:BCAL1982; -.
DR   eggNOG; COG0229; Bacteria.
DR   HOGENOM; CLU_031040_8_5_4; -.
DR   OMA; DEQWRAE; -.
DR   OrthoDB; 1650261at2; -.
DR   BioCyc; BCEN216591:G1G1V-2175-MON; -.
DR   Proteomes; UP000001035; Chromosome 1.
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..143
FT                   /note="Peptide methionine sulfoxide reductase MsrB"
FT                   /id="PRO_1000145354"
FT   DOMAIN          16..139
FT                   /note="MsrB"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   ACT_SITE        128
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   BINDING         55
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   BINDING         58
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   BINDING         104
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   BINDING         107
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
SQ   SEQUENCE   143 AA;  16230 MW;  C28E9BC11C024551 CRC64;
     MSHDSDDKTF PYQKDDAELR RRLTPMQYEV TQHAATERAF TGEYTDTEDA GIYKCVVCST
     PLFESGAKFH SGCGWPSYFK PLNGEVIDEK IDYSHGMVRV EVRCNHCGAH LGHVFEDGPR
     DKTGLRYCIN SAALNFESRP ENE