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MSRAB_HAEIN
ID   MSRAB_HAEIN             Reviewed;         353 AA.
AC   P45213;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   03-AUG-2022, entry version 138.
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; OrderedLocusNames=HI_1455;
OS   Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=71421;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51907 / DSM 11121 / KW20 / Rd;
RX   PubMed=7542800; DOI=10.1126/science.7542800;
RA   Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F.,
RA   Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M.,
RA   McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D.,
RA   Scott J.D., Shirley R., Liu L.-I., Glodek A., Kelley J.M., Weidman J.F.,
RA   Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R.,
RA   Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D.,
RA   Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A.,
RA   Small K.V., Fraser C.M., Smith H.O., Venter J.C.;
RT   "Whole-genome random sequencing and assembly of Haemophilus influenzae
RT   Rd.";
RL   Science 269:496-512(1995).
RN   [2]
RP   IDENTIFICATION BY MASS SPECTROMETRY.
RC   STRAIN=ATCC 51907 / DSM 11121 / KW20 / Rd;
RX   PubMed=10675023;
RX   DOI=10.1002/(sici)1522-2683(20000101)21:2<411::aid-elps411>3.0.co;2-4;
RA   Langen H., Takacs B., Evers S., Berndt P., Lahm H.W., Wipf B., Gray C.,
RA   Fountoulakis M.;
RT   "Two-dimensional map of the proteome of Haemophilus influenzae.";
RL   Electrophoresis 21:411-429(2000).
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}.
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DR   EMBL; L42023; AAC23103.1; -; Genomic_DNA.
DR   PIR; E64124; E64124.
DR   RefSeq; NP_439606.1; NC_000907.1.
DR   RefSeq; WP_010869216.1; NC_000907.1.
DR   AlphaFoldDB; P45213; -.
DR   SMR; P45213; -.
DR   STRING; 71421.HI_1455; -.
DR   EnsemblBacteria; AAC23103; AAC23103; HI_1455.
DR   KEGG; hin:HI_1455; -.
DR   PATRIC; fig|71421.8.peg.1516; -.
DR   eggNOG; COG0225; Bacteria.
DR   eggNOG; COG0229; Bacteria.
DR   HOGENOM; CLU_031040_1_0_6; -.
DR   OMA; GEFIPYI; -.
DR   PhylomeDB; P45213; -.
DR   BioCyc; HINF71421:G1GJ1-1480-MON; -.
DR   Proteomes; UP000000579; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
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; IBA:GO_Central.
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   1: Evidence at protein level;
KW   Multifunctional enzyme; Oxidoreductase; Reference proteome.
FT   CHAIN           1..353
FT                   /note="Peptide methionine sulfoxide reductase MsrA/MsrB"
FT                   /id="PRO_0000138513"
FT   DOMAIN          213..336
FT                   /note="MsrB"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
FT   REGION          43..196
FT                   /note="Peptide methionine sulfoxide reductase A"
FT   ACT_SITE        51
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        325
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01126"
SQ   SEQUENCE   353 AA;  39864 MW;  ADBCDDB4D90A8B1E CRC64;
     MKLSKTFLFI TALCCATPTL AIQNSTSSSG EQKMAMENTQ NIREIYLAGG CFWGMEAYME
     RIHGVKDAIS GYANGNTEKT SYQMIGLTDH AETVKVTYDA NQISLDKLLK YYFKVIDPTS
     VNKQGNDRGR QYRTGIYYQD GADKAVIGQA LAQLQTKYKK PVQIEVQPLK NYIVAEEYHQ
     DYLKKNPNGY CHIDITKADE PVIDEKDYPK PSDAELKAKL TPLQYSVTQN KHTERSFSNE
     YWDNFQPGIY VDITTGEPVF SSNDKFESGC GWPSFTKPII KDVVHYETDN SFNMQRTEVL
     SRAGNAHLGH VFDDGPKDKG GLRYCINSAS IKFIPLAEME KAGYGYLIQS IKK
 
 
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