TPX_LISMO
ID TPX_LISMO Reviewed; 165 AA.
AC Q8Y6U8;
DT 19-OCT-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2002, sequence version 1.
DT 03-AUG-2022, entry version 109.
DE RecName: Full=Thiol peroxidase {ECO:0000255|HAMAP-Rule:MF_00269};
DE Short=Tpx {ECO:0000255|HAMAP-Rule:MF_00269};
DE EC=1.11.1.24 {ECO:0000255|HAMAP-Rule:MF_00269};
DE AltName: Full=Peroxiredoxin tpx {ECO:0000255|HAMAP-Rule:MF_00269};
DE Short=Prx {ECO:0000255|HAMAP-Rule:MF_00269};
DE AltName: Full=Thioredoxin peroxidase {ECO:0000255|HAMAP-Rule:MF_00269};
DE AltName: Full=Thioredoxin-dependent peroxiredoxin {ECO:0000255|HAMAP-Rule:MF_00269};
GN Name=tpx {ECO:0000255|HAMAP-Rule:MF_00269}; OrderedLocusNames=lmo1583;
OS Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Listeriaceae; Listeria.
OX NCBI_TaxID=169963;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-679 / EGD-e;
RX PubMed=11679669; DOI=10.1126/science.1063447;
RA Glaser P., Frangeul L., Buchrieser C., Rusniok C., Amend A., Baquero F.,
RA Berche P., Bloecker H., Brandt P., Chakraborty T., Charbit A.,
RA Chetouani F., Couve E., de Daruvar A., Dehoux P., Domann E.,
RA Dominguez-Bernal G., Duchaud E., Durant L., Dussurget O., Entian K.-D.,
RA Fsihi H., Garcia-del Portillo F., Garrido P., Gautier L., Goebel W.,
RA Gomez-Lopez N., Hain T., Hauf J., Jackson D., Jones L.-M., Kaerst U.,
RA Kreft J., Kuhn M., Kunst F., Kurapkat G., Madueno E., Maitournam A.,
RA Mata Vicente J., Ng E., Nedjari H., Nordsiek G., Novella S., de Pablos B.,
RA Perez-Diaz J.-C., Purcell R., Remmel B., Rose M., Schlueter T., Simoes N.,
RA Tierrez A., Vazquez-Boland J.-A., Voss H., Wehland J., Cossart P.;
RT "Comparative genomics of Listeria species.";
RL Science 294:849-852(2001).
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. {ECO:0000255|HAMAP-Rule:MF_00269}.
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; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00269};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00269}.
CC -!- MISCELLANEOUS: The active site is a conserved redox-active cysteine
CC residue, the peroxidatic cysteine (C(P)), which makes the nucleophilic
CC attack on the peroxide substrate. The peroxide oxidizes the C(P)-SH to
CC cysteine sulfenic acid (C(P)-SOH), which then reacts with another
CC cysteine residue, the resolving cysteine (C(R)), to form a disulfide
CC bridge. The disulfide is subsequently reduced by an appropriate
CC electron donor to complete the catalytic cycle. In this atypical 2-Cys
CC peroxiredoxin, C(R) is present in the same subunit to form an
CC intramolecular disulfide. The disulfide is subsequently reduced by
CC thioredoxin. {ECO:0000255|HAMAP-Rule:MF_00269}.
CC -!- SIMILARITY: Belongs to the peroxiredoxin family. Tpx subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_00269}.
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DR EMBL; AL591979; CAC99661.1; -; Genomic_DNA.
DR PIR; AG1272; AG1272.
DR RefSeq; NP_465108.1; NC_003210.1.
DR RefSeq; WP_009931845.1; NZ_CP023861.1.
DR AlphaFoldDB; Q8Y6U8; -.
DR SMR; Q8Y6U8; -.
DR STRING; 169963.lmo1583; -.
DR PaxDb; Q8Y6U8; -.
DR EnsemblBacteria; CAC99661; CAC99661; CAC99661.
DR GeneID; 987763; -.
DR KEGG; lmo:lmo1583; -.
DR PATRIC; fig|169963.11.peg.1625; -.
DR eggNOG; COG2077; Bacteria.
DR HOGENOM; CLU_042529_12_0_9; -.
DR OMA; ITQEPNY; -.
DR PhylomeDB; Q8Y6U8; -.
DR BioCyc; LMON169963:LMO1583-MON; -.
DR Proteomes; UP000000817; Chromosome.
DR GO; GO:0008379; F:thioredoxin peroxidase activity; IEA:UniProtKB-UniRule.
DR CDD; cd03014; PRX_Atyp2cys; 1.
DR HAMAP; MF_00269; Tpx; 1.
DR InterPro; IPR013740; Redoxin.
DR InterPro; IPR036249; Thioredoxin-like_sf.
DR InterPro; IPR013766; Thioredoxin_domain.
DR InterPro; IPR002065; TPX.
DR InterPro; IPR018219; Tpx_CS.
DR Pfam; PF08534; Redoxin; 1.
DR SUPFAM; SSF52833; SSF52833; 1.
DR PROSITE; PS51352; THIOREDOXIN_2; 1.
DR PROSITE; PS01265; TPX; 1.
PE 3: Inferred from homology;
KW Antioxidant; Disulfide bond; Oxidoreductase; Peroxidase;
KW Redox-active center; Reference proteome.
FT CHAIN 1..165
FT /note="Thiol peroxidase"
FT /id="PRO_0000187887"
FT DOMAIN 18..164
FT /note="Thioredoxin"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00269"
FT ACT_SITE 60
FT /note="Cysteine sulfenic acid (-SOH) intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00269"
FT DISULFID 60..94
FT /note="Redox-active"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00269"
SQ SEQUENCE 165 AA; 18134 MW; 77705B7CC46D424D CRC64;
MTQVTFKHNP VTLVGTERKV GDKAPNFTVV NRDLEEVTLH DYDGKVRLIS VVPSIDTSVC
STQTRKFNEE ASNLDNTVVL TISVDLPFAQ KKWCAAEGLP NAITLSDHRD LSFGEAYGVI
MKELRLLARS VFVVNAVGEI VYTEVVPEGS DHPNYEAAIE AAKKA
