MSRB_BURCC
ID MSRB_BURCC Reviewed; 143 AA.
AC B1JTT6;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 29-APR-2008, sequence version 1.
DT 03-AUG-2022, entry version 79.
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=Bcenmc03_1932;
OS Burkholderia cenocepacia (strain MC0-3).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Burkholderia; Burkholderia cepacia complex.
OX NCBI_TaxID=406425;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MC0-3;
RA Copeland A., Lucas S., Lapidus A., Barry K., Bruce D., Goodwin L.,
RA Glavina del Rio T., Dalin E., Tice H., Pitluck S., Chain P., Malfatti S.,
RA Shin M., Vergez L., Schmutz J., Larimer F., Land M., Hauser L.,
RA Kyrpides N., Mikhailova N., Tiedje J., Richardson P.;
RT "Complete sequence of chromosome 1 of Burkholderia cenocepacia MC0-3.";
RL Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases.
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; CP000958; ACA91093.1; -; Genomic_DNA.
DR RefSeq; WP_006478590.1; NC_010508.1.
DR AlphaFoldDB; B1JTT6; -.
DR SMR; B1JTT6; -.
DR EnsemblBacteria; ACA91093; ACA91093; Bcenmc03_1932.
DR KEGG; bcm:Bcenmc03_1932; -.
DR HOGENOM; CLU_031040_8_5_4; -.
DR OMA; DEQWRAE; -.
DR Proteomes; UP000002169; 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_1000145352"
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; 16216 MW; 6D8E9BC10B0928F0 CRC64;
MSHDSDDKTF PYQKDDAELR RRLTPMQYEV TQHAATERAF TGEYTDTEDA GIYKCVVCST
PLFESGAKFH SGCGWPSYFK PLNGEVIDEK VDYSHGMVRV EVRCNHCGAH LGHVFEDGPR
DKTGLRYCIN SAALNFESRP ENE
