ID A0A108T3E1_BACSE Unreviewed; 342 AA.
AC A0A108T3E1;
DT 13-APR-2016, integrated into UniProtKB/TrEMBL.
DT 13-APR-2016, sequence version 1.
DT 27-MAR-2024, entry version 39.
DE RecName: Full=Multifunctional fusion protein {ECO:0000256|HAMAP-Rule:MF_01400, ECO:0000256|HAMAP-Rule:MF_01401};
DE Includes:
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};
DE Includes:
DE RecName: Full=Peptide methionine sulfoxide reductase MsrB {ECO:0000256|HAMAP-Rule:MF_01400};
DE EC=1.8.4.12 {ECO:0000256|HAMAP-Rule:MF_01400};
DE AltName: Full=Peptide-methionine (R)-S-oxide reductase {ECO:0000256|HAMAP-Rule:MF_01400};
GN Name=msrAB {ECO:0000313|EMBL:KWR52560.1};
GN Synonyms=msrA {ECO:0000256|HAMAP-Rule:MF_01401}, msrB
GN {ECO:0000256|HAMAP-Rule:MF_01400};
GN ORFNames=AA415_02812 {ECO:0000313|EMBL:KWR52560.1};
OS Bacteroides stercoris.
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Bacteroidaceae;
OC Bacteroides.
OX NCBI_TaxID=46506 {ECO:0000313|EMBL:KWR52560.1, ECO:0000313|Proteomes:UP000056419};
RN [1] {ECO:0000313|EMBL:KWR52560.1, ECO:0000313|Proteomes:UP000056419}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CL09T03C01 {ECO:0000313|EMBL:KWR52560.1,
RC ECO:0000313|Proteomes:UP000056419};
RX PubMed=26768901; DOI=10.1186/s12864-016-2377-z;
RA Coyne M.J., Roelofs K.G., Comstock L.E.;
RT "Type VI secretion systems of human gut Bacteroidales segregate into three
RT genetic architectures, two of which are contained on mobile genetic
RT elements.";
RL BMC Genomics 17:58-58(2016).
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-(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 Evidence={ECO:0000256|ARBA:ARBA00001795, ECO:0000256|HAMAP-
CC Rule:MF_01400};
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|HAMAP-Rule:MF_01401}.
CC -!- SIMILARITY: Belongs to the MsrB Met sulfoxide reductase family.
CC {ECO:0000256|HAMAP-Rule:MF_01400}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the MsrB Met
CC sulfoxide reductase family. {ECO:0000256|ARBA:ARBA00008076}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01400}.
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:KWR52560.1}.
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DR EMBL; LRGC01000019; KWR52560.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A108T3E1; -.
DR STRING; 46506.AA415_02812; -.
DR PATRIC; fig|46506.5.peg.3034; -.
DR Proteomes; UP000056419; 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-UniRule.
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 GO; GO:0030091; P:protein repair; IEA:InterPro.
DR GO; GO:0006979; P:response to oxidative stress; IEA:InterPro.
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 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 NCBIfam; TIGR00401; msrA; 1.
DR NCBIfam; TIGR00357; peptide-methionine (R)-S-oxide reductase MsrB; 1.
DR PANTHER; PTHR10173; METHIONINE SULFOXIDE REDUCTASE; 1.
DR PANTHER; PTHR10173:SF52; METHIONINE-R-SULFOXIDE REDUCTASE B3; 1.
DR Pfam; PF01625; PMSR; 1.
DR Pfam; PF01641; SelR; 1.
DR SUPFAM; SSF51316; Mss4-like; 1.
DR SUPFAM; SSF55068; Peptide methionine sulfoxide reductase; 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_01400}; Reference proteome {ECO:0000313|Proteomes:UP000056419}.
FT DOMAIN 203..326
FT /note="MsrB"
FT /evidence="ECO:0000259|PROSITE:PS51790"
FT ACT_SITE 34
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01401"
FT ACT_SITE 315
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01400"
SQ SEQUENCE 342 AA; 38372 MW; 2DB4EF26DC220761 CRC64;
MLISCLSCVG KSTGQAERRN DMKSMKEIYL AGGCFWGTEH FLKQIEGVEV TQVGYANGNI
ANPTYQQVCT GTTDFAETVK VQYDSDKVTL SFLIDLYFKT IDPTSLNRQG NDCGTQYRTG
IYYTDTADLP VICETVSRLA ANYTRPLEVE IEPLKNFYPA EEYHQDYLDK NPGGYCHINP
ALFDLARKAK MKKPVAAYSK PDDATLRSQL TAEQYAVTQK NATEPPFRNA YWDEHRPGIY
VDITTGEPLF VSTDKFDSGC GWPSFSKPID RKLIQEKADT THGMVRTEVR SKTGDAHLGH
VFTDGPADKG GLRYCINSAS LRFIPKEKMQ AEGYGEYLEL VK
//
