MSRAB_STRP1
ID MSRAB_STRP1 Reviewed; 309 AA.
AC Q99YT1; Q48XM5;
DT 02-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT 02-MAY-2002, sequence version 2.
DT 03-AUG-2022, entry version 142.
DE RecName: Full=Peptide methionine sulfoxide reductase MsrA/MsrB;
DE Includes:
DE RecName: Full=Peptide methionine sulfoxide reductase MsrA;
DE Short=Protein-methionine-S-oxide reductase;
DE EC=1.8.4.11;
DE AltName: Full=Peptide-methionine (S)-S-oxide reductase;
DE Short=Peptide Met(O) reductase;
DE Includes:
DE RecName: Full=Peptide methionine sulfoxide reductase MsrB;
DE EC=1.8.4.12;
DE AltName: Full=Peptide-methionine (R)-S-oxide reductase;
GN Name=msrAB; Synonyms=msrA; OrderedLocusNames=SPy_1557, M5005_Spy1282;
OS Streptococcus pyogenes serotype M1.
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=301447;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700294 / SF370 / Serotype M1;
RX PubMed=11296296; DOI=10.1073/pnas.071559398;
RA Ferretti J.J., McShan W.M., Ajdic D.J., Savic D.J., Savic G., Lyon K.,
RA Primeaux C., Sezate S., Suvorov A.N., Kenton S., Lai H.S., Lin S.P.,
RA Qian Y., Jia H.G., Najar F.Z., Ren Q., Zhu H., Song L., White J., Yuan X.,
RA Clifton S.W., Roe B.A., McLaughlin R.E.;
RT "Complete genome sequence of an M1 strain of Streptococcus pyogenes.";
RL Proc. Natl. Acad. Sci. U.S.A. 98:4658-4663(2001).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-947 / MGAS5005 / Serotype M1;
RX PubMed=16088826; DOI=10.1086/432514;
RA Sumby P., Porcella S.F., Madrigal A.G., Barbian K.D., Virtaneva K.,
RA Ricklefs S.M., Sturdevant D.E., Graham M.R., Vuopio-Varkila J., Hoe N.P.,
RA Musser J.M.;
RT "Evolutionary origin and emergence of a highly successful clone of serotype
RT M1 group A Streptococcus involved multiple horizontal gene transfer
RT events.";
RL J. Infect. Dis. 192:771-782(2005).
CC -!- FUNCTION: Has an important function as a repair enzyme for proteins
CC that have been inactivated by oxidation. Catalyzes the reversible
CC oxidation-reduction of methionine sulfoxide in proteins to methionine
CC (By similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[thioredoxin]-disulfide + H2O + L-methionyl-[protein] =
CC [thioredoxin]-dithiol + L-methionyl-(S)-S-oxide-[protein];
CC Xref=Rhea:RHEA:14217, Rhea:RHEA-COMP:10698, Rhea:RHEA-COMP:10700,
CC Rhea:RHEA-COMP:12313, Rhea:RHEA-COMP:12315, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:16044, ChEBI:CHEBI:29950, ChEBI:CHEBI:44120,
CC ChEBI:CHEBI:50058; EC=1.8.4.11;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[thioredoxin]-disulfide + H2O + L-methionine = [thioredoxin]-
CC dithiol + L-methionine (S)-S-oxide; Xref=Rhea:RHEA:19993, Rhea:RHEA-
CC COMP:10698, Rhea:RHEA-COMP:10700, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:29950, ChEBI:CHEBI:50058, ChEBI:CHEBI:57844,
CC ChEBI:CHEBI:58772; EC=1.8.4.11;
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;
CC -!- SIMILARITY: In the N-terminal section; belongs to the MsrA Met
CC sulfoxide reductase family. {ECO:0000305}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the MsrB Met
CC sulfoxide reductase family. {ECO:0000305}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAK34345.1; Type=Erroneous initiation; Evidence={ECO:0000305};
CC Sequence=AAZ51900.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; AE004092; AAK34345.1; ALT_INIT; Genomic_DNA.
DR EMBL; CP000017; AAZ51900.1; ALT_INIT; Genomic_DNA.
DR RefSeq; NP_269624.1; NC_002737.2.
DR AlphaFoldDB; Q99YT1; -.
DR SMR; Q99YT1; -.
DR STRING; 1314.HKU360_01323; -.
DR PaxDb; Q99YT1; -.
DR EnsemblBacteria; AAK34345; AAK34345; SPy_1557.
DR KEGG; spy:SPy_1557; -.
DR KEGG; spz:M5005_Spy1282; -.
DR PATRIC; fig|160490.10.peg.1360; -.
DR HOGENOM; CLU_031040_1_1_9; -.
DR OMA; GEFIPYI; -.
DR Proteomes; UP000000750; Chromosome.
DR GO; GO:0033744; F:L-methionine:thioredoxin-disulfide S-oxidoreductase activity; IEA:RHEA.
DR GO; GO:0033743; F:peptide-methionine (R)-S-oxide reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008113; F:peptide-methionine (S)-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 Gene3D; 3.30.1060.10; -; 1.
DR HAMAP; MF_01401; MsrA; 1.
DR HAMAP; MF_01400; MsrB; 1.
DR InterPro; IPR002569; Met_Sox_Rdtase_MsrA_dom.
DR InterPro; IPR036509; Met_Sox_Rdtase_MsrA_sf.
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; PF01625; PMSR; 1.
DR Pfam; PF01641; SelR; 1.
DR SUPFAM; SSF51316; SSF51316; 1.
DR SUPFAM; SSF55068; SSF55068; 1.
DR TIGRFAMs; TIGR00401; msrA; 1.
DR TIGRFAMs; TIGR00357; TIGR00357; 1.
DR PROSITE; PS51790; MSRB; 1.
PE 3: Inferred from homology;
KW Multifunctional enzyme; Oxidoreductase; Reference proteome.
FT CHAIN 1..309
FT /note="Peptide methionine sulfoxide reductase MsrA/MsrB"
FT /id="PRO_0000138521"
FT DOMAIN 170..293
FT /note="MsrB"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT REGION 1..153
FT /note="Peptide methionine sulfoxide reductase A"
FT ACT_SITE 8
FT /evidence="ECO:0000250"
FT ACT_SITE 282
FT /note="Nucleophile"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT CONFLICT 294
FT /note="A -> S (in Ref. 2; AAZ51900)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 309 AA; 35103 MW; 226E1374F1038ADF CRC64;
MIYLAGGCFW GVEEYFSQVD GVLDAVSGYA NGRGDTTNYQ LIHQTGHAET VEVAYDANRI
SLKELLLHFF RIIDPTSLNK QGNDRGSQYR TGIYYTDKAD LAIIDEVFKE KAKDYKKKIV
VEKAPLKHFI KAEDYHQDYL KKNPNGYCHI DINQATYPVI DESKYPKPSA TEIKEKLSAD
EYRVTQKNET EKAFSNRYWD SFDAGIYVDV VTGEPLFSSK DKFESGCGWP SFSRPISPDV
VRYKEDKSFN MTRTEVRSRS GNSHLGHVFT DGPKDQGGLR YCINSLSITF IPKADMEAKG
YGYLLSSVE
