ID   MSRB_BURMS              Reviewed;         143 AA.
AC   A1V4U8;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 86.
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=BMASAVP1_A1932;
OS   Burkholderia mallei (strain SAVP1).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Burkholderia; pseudomallei group.
OX   NCBI_TaxID=320388;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SAVP1;
RX   PubMed=20333227; DOI=10.1093/gbe/evq003;
RA   Losada L., Ronning C.M., DeShazer D., Woods D., Fedorova N., Kim H.S.,
RA   Shabalina S.A., Pearson T.R., Brinkac L., Tan P., Nandi T., Crabtree J.,
RA   Badger J., Beckstrom-Sternberg S., Saqib M., Schutzer S.E., Keim P.,
RA   Nierman W.C.;
RT   "Continuing evolution of Burkholderia mallei through genome reduction and
RT   large-scale rearrangements.";
RL   Genome Biol. Evol. 2:102-116(2010).
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; CP000526; ABM51569.1; -; Genomic_DNA.
DR   RefSeq; WP_004193880.1; NC_008785.1.
DR   AlphaFoldDB; A1V4U8; -.
DR   SMR; A1V4U8; -.
DR   GeneID; 56595843; -.
DR   KEGG; bmv:BMASAVP1_A1932; -.
DR   HOGENOM; CLU_031040_8_5_4; -.
DR   OMA; DEQWRAE; -.
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_1000145359"
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;  16171 MW;  F964BD77806AE7C2 CRC64;
     MSGDRDDPRY PYPKDDAELR RRLTPMQYEV TQHAATEPPF TGEYTDTEDA GIYHCVVCGT
     ALFESGAKFH SGCGWPSYFK PIDGEVIDEK MDYTHGMTRV EVRCNQCGAH LGHVFEDGPR
     DKTGLRYCIN SAALNFEAKP ERK