MSRB_STRP8
ID MSRB_STRP8 Reviewed; 145 AA.
AC Q8P172;
DT 01-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2002, sequence version 1.
DT 25-MAY-2022, entry version 113.
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=spyM18_1032;
OS Streptococcus pyogenes serotype M18 (strain MGAS8232).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=186103;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MGAS8232;
RX PubMed=11917108; DOI=10.1073/pnas.062526099;
RA Smoot J.C., Barbian K.D., Van Gompel J.J., Smoot L.M., Chaussee M.S.,
RA Sylva G.L., Sturdevant D.E., Ricklefs S.M., Porcella S.F., Parkins L.D.,
RA Beres S.B., Campbell D.S., Smith T.M., Zhang Q., Kapur V., Daly J.A.,
RA Veasy L.G., Musser J.M.;
RT "Genome sequence and comparative microarray analysis of serotype M18 group
RT A Streptococcus strains associated with acute rheumatic fever outbreaks.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:4668-4673(2002).
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 -!- SIMILARITY: Belongs to the MsrB Met sulfoxide reductase family.
CC {ECO:0000255|HAMAP-Rule:MF_01400}.
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DR EMBL; AE009949; AAL97662.1; -; Genomic_DNA.
DR RefSeq; WP_011017722.1; NC_003485.1.
DR AlphaFoldDB; Q8P172; -.
DR SMR; Q8P172; -.
DR KEGG; spm:spyM18_1032; -.
DR HOGENOM; CLU_031040_8_5_9; -.
DR OMA; DEQWRAE; -.
DR GO; GO:0033743; F:peptide-methionine (R)-S-oxide reductase activity; 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 Oxidoreductase.
FT CHAIN 1..145
FT /note="Peptide methionine sulfoxide reductase MsrB"
FT /id="PRO_0000140310"
FT DOMAIN 4..127
FT /note="MsrB"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT ACT_SITE 116
FT /note="Nucleophile"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
SQ SEQUENCE 145 AA; 16383 MW; 7474A0F0BF644A13 CRC64;
METSDELKQR IGDLSYEVTQ HAATESPFTG EYDDFFEKGI YIDIVSGEVL FSSLDKFNSG
CGWPAFSKPI ENRMVTNHDD SSYGMRRVEV KSREAGSHLG HVFSDGPKEA GGLRYCINSA
ALKFIPYEQM EKEGYAQWLT LFDET