ID Q3SK42_THIDA Unreviewed; 151 AA.
AC Q3SK42;
DT 11-OCT-2005, integrated into UniProtKB/TrEMBL.
DT 11-OCT-2005, sequence version 1.
DT 27-MAR-2024, entry version 102.
DE RecName: Full=thioredoxin-dependent peroxiredoxin {ECO:0000256|ARBA:ARBA00013017};
DE EC=1.11.1.24 {ECO:0000256|ARBA:ARBA00013017};
DE AltName: Full=Bacterioferritin comigratory protein {ECO:0000256|ARBA:ARBA00041373};
DE AltName: Full=Thioredoxin peroxidase {ECO:0000256|ARBA:ARBA00032824};
DE AltName: Full=Thioredoxin-dependent peroxiredoxin Bcp {ECO:0000256|ARBA:ARBA00042639};
GN OrderedLocusNames=Tbd_0999 {ECO:0000313|EMBL:AAZ96952.1};
OS Thiobacillus denitrificans (strain ATCC 25259).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Nitrosomonadales;
OC Thiobacillaceae; Thiobacillus.
OX NCBI_TaxID=292415 {ECO:0000313|EMBL:AAZ96952.1, ECO:0000313|Proteomes:UP000008291};
RN [1] {ECO:0000313|EMBL:AAZ96952.1, ECO:0000313|Proteomes:UP000008291}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 25259 {ECO:0000313|EMBL:AAZ96952.1,
RC ECO:0000313|Proteomes:UP000008291};
RX PubMed=16452431; DOI=10.1128/JB.188.4.1473-1488.2006;
RA Beller H.R., Chain P.S., Letain T.E., Chakicherla A., Larimer F.W.,
RA Richardson P.M., Coleman M.A., Wood A.P., Kelly D.P.;
RT "The genome sequence of the obligately chemolithoautotrophic, facultatively
RT anaerobic bacterium Thiobacillus denitrificans.";
RL J. Bacteriol. 188:1473-1488(2006).
CC -!- FUNCTION: Thiol-specific peroxidase that catalyzes the reduction of
CC hydrogen peroxide and organic hydroperoxides to water and alcohols,
CC respectively. Plays a role in cell protection against oxidative stress
CC by detoxifying peroxides and as sensor of hydrogen peroxide-mediated
CC signaling events. {ECO:0000256|ARBA:ARBA00003330}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[thioredoxin]-dithiol + a hydroperoxide = [thioredoxin]-
CC disulfide + an alcohol + H2O; Xref=Rhea:RHEA:62620, Rhea:RHEA-
CC COMP:10698, Rhea:RHEA-COMP:10700, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:29950, ChEBI:CHEBI:30879, ChEBI:CHEBI:35924,
CC ChEBI:CHEBI:50058; EC=1.11.1.24;
CC Evidence={ECO:0000256|ARBA:ARBA00000280};
CC -!- SUBUNIT: Monomer. {ECO:0000256|ARBA:ARBA00011245}.
CC -!- SIMILARITY: Belongs to the peroxiredoxin family. BCP/PrxQ subfamily.
CC {ECO:0000256|ARBA:ARBA00038489}.
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DR EMBL; CP000116; AAZ96952.1; -; Genomic_DNA.
DR RefSeq; WP_011311511.1; NC_007404.1.
DR AlphaFoldDB; Q3SK42; -.
DR STRING; 292415.Tbd_0999; -.
DR KEGG; tbd:Tbd_0999; -.
DR eggNOG; COG1225; Bacteria.
DR HOGENOM; CLU_042529_14_1_4; -.
DR OrthoDB; 9812811at2; -.
DR Proteomes; UP000008291; Chromosome.
DR GO; GO:0016209; F:antioxidant activity; IEA:InterPro.
DR GO; GO:0016491; F:oxidoreductase activity; IEA:UniProtKB-KW.
DR CDD; cd03017; PRX_BCP; 1.
DR Gene3D; 3.40.30.10; Glutaredoxin; 1.
DR InterPro; IPR000866; AhpC/TSA.
DR InterPro; IPR024706; Peroxiredoxin_AhpC-typ.
DR InterPro; IPR036249; Thioredoxin-like_sf.
DR InterPro; IPR013766; Thioredoxin_domain.
DR PANTHER; PTHR42801:SF24; PEROXIREDOXIN BCP; 1.
DR PANTHER; PTHR42801; THIOREDOXIN-DEPENDENT PEROXIDE REDUCTASE; 1.
DR Pfam; PF00578; AhpC-TSA; 1.
DR PIRSF; PIRSF000239; AHPC; 1.
DR SUPFAM; SSF52833; Thioredoxin-like; 1.
DR PROSITE; PS51352; THIOREDOXIN_2; 1.
PE 3: Inferred from homology;
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002};
KW Reference proteome {ECO:0000313|Proteomes:UP000008291}.
FT DOMAIN 1..151
FT /note="Thioredoxin"
FT /evidence="ECO:0000259|PROSITE:PS51352"
FT ACT_SITE 42
FT /note="Cysteine sulfenic acid (-SOH) intermediate; for
FT peroxidase activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR000239-1"
SQ SEQUENCE 151 AA; 16826 MW; 91CDA4D7A15CB49A CRC64;
MNEPEIQDFE LPTTGNTPFK LSGQRGKNVV VYFYPKDNTS GCTLEGQEFR DLYPEFTKAN
TIVVGVSRDS LKSHEGFKAA HGFPFELLAD TDEKVCELFG VMKLKNMYGK QVRGVERSTF
VFDVNGKLVK SWRGLKAPGH AAEVLGFVQG L
//
