ID V4JKL7_9GAMM Unreviewed; 426 AA.
AC V4JKL7;
DT 22-JAN-2014, integrated into UniProtKB/TrEMBL.
DT 22-JAN-2014, sequence version 1.
DT 27-MAR-2024, entry version 47.
DE RecName: Full=Peptide methionine sulfoxide reductase MsrA {ECO:0000256|HAMAP-Rule:MF_01401};
DE Short=Protein-methionine-S-oxide reductase {ECO:0000256|HAMAP-Rule:MF_01401};
DE EC=1.8.4.11 {ECO:0000256|HAMAP-Rule:MF_01401};
DE AltName: Full=Peptide-methionine (S)-S-oxide reductase {ECO:0000256|HAMAP-Rule:MF_01401};
DE Short=Peptide Met(O) reductase {ECO:0000256|HAMAP-Rule:MF_01401};
GN Name=msrA {ECO:0000256|HAMAP-Rule:MF_01401};
GN ORFNames=N838_30080 {ECO:0000313|EMBL:ESQ15154.1};
OS Thiohalocapsa sp. PB-PSB1.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Chromatiales; Chromatiaceae;
OC Thiohalocapsa.
OX NCBI_TaxID=1385625 {ECO:0000313|EMBL:ESQ15154.1, ECO:0000313|Proteomes:UP000017935};
RN [1] {ECO:0000313|EMBL:ESQ15154.1, ECO:0000313|Proteomes:UP000017935}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Wilbanks E.G., Jaekel U., Salman V., Humphrey P.T., Eisen J.A.,
RA Facciotti M.T., Buckley D.H., Zinder S.H., Druschel G.K., Fike D.A.,
RA Orphan V.J.;
RT "A sulfurous symbiosis: microscale sulfur cycling in the pink berry
RT consortia of the Sippewissett salt marsh.";
RL Submitted (AUG-2013) to the EMBL/GenBank/DDBJ databases.
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 {ECO:0000256|HAMAP-Rule:MF_01401}.
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 Evidence={ECO:0000256|ARBA:ARBA00001063, ECO:0000256|HAMAP-
CC Rule:MF_01401};
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 Evidence={ECO:0000256|ARBA:ARBA00001497, ECO:0000256|HAMAP-
CC Rule:MF_01401};
CC -!- SIMILARITY: Belongs to the MsrA Met sulfoxide reductase family.
CC {ECO:0000256|ARBA:ARBA00005591, ECO:0000256|HAMAP-Rule:MF_01401}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:ESQ15154.1}.
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DR EMBL; AVFR01000463; ESQ15154.1; -; Genomic_DNA.
DR AlphaFoldDB; V4JKL7; -.
DR PATRIC; fig|1385625.5.peg.3182; -.
DR Proteomes; UP000017935; Unassembled WGS sequence.
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-EC.
DR GO; GO:0008113; F:peptide-methionine (S)-S-oxide reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0036211; P:protein modification process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.30.10; Glutaredoxin; 1.
DR Gene3D; 2.170.150.20; Peptide methionine sulfoxide reductase; 1.
DR Gene3D; 3.30.1060.10; Peptide methionine sulphoxide reductase MsrA; 1.
DR HAMAP; MF_01401; MsrA; 1.
DR InterPro; IPR002569; Met_Sox_Rdtase_MsrA_dom.
DR InterPro; IPR036509; Met_Sox_Rdtase_MsrA_sf.
DR InterPro; IPR002579; Met_Sox_Rdtase_MsrB_dom.
DR InterPro; IPR011057; Mss4-like_sf.
DR InterPro; IPR012336; Thioredoxin-like_fold.
DR InterPro; IPR036249; Thioredoxin-like_sf.
DR NCBIfam; TIGR00401; msrA; 1.
DR NCBIfam; TIGR00357; peptide-methionine (R)-S-oxide reductase MsrB; 1.
DR PANTHER; PTHR42799; MITOCHONDRIAL PEPTIDE METHIONINE SULFOXIDE REDUCTASE; 1.
DR PANTHER; PTHR42799:SF2; MITOCHONDRIAL PEPTIDE METHIONINE SULFOXIDE REDUCTASE; 1.
DR Pfam; PF01625; PMSR; 1.
DR Pfam; PF01641; SelR; 1.
DR Pfam; PF13098; Thioredoxin_2; 1.
DR SUPFAM; SSF51316; Mss4-like; 1.
DR SUPFAM; SSF55068; Peptide methionine sulfoxide reductase; 1.
DR SUPFAM; SSF52833; Thioredoxin-like; 1.
DR PROSITE; PS51790; MSRB; 1.
PE 3: Inferred from homology;
KW Multifunctional enzyme {ECO:0000256|ARBA:ARBA00023268};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_01401}; Reference proteome {ECO:0000313|Proteomes:UP000017935}.
FT ACT_SITE 41
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01401"
SQ SEQUENCE 426 AA; 46727 MW; 482217E5AF8532A8 CRC64;
MLKLKPSFLV AIVLAGSSMV LSSMTTAAPA GAQSIVLGMG CFWGAEKRMA AVPGVLDVES
GYAGGDAEKA GYRDVLNLEK AIARGRSNER NHAEVIKVTF DPEQVSLEEV LIQFWQNHDP
TQGDRQGNDV GTNYRSAVYT TSPGQRAVVT DTRDTYQQAL TAAGFGPITT EIAPLKNYNR
AEGYHQDYLV KNPNGYCGLG GTDVTYPGQP EQAKPKALMA ADLNRARQLV VFEAEECPYC
ALFKRDILSS WASEVPVVTT YATTPPDGWK LAKALFATPT TVLFENGREV SRYTGYKGDR
ERFWKWLGQR ILTPEQRRIA FENGTERPFT GSHLDETRPG YFADPITGEP LFRTDTKFKS
GTGWPSFFQP VAGAVTLHED SSHGMRRVEV RSASSGIHLG HVFNDGPPPT GKRYCINGNV
LAFVPE
//
