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TRXB_RICCN
ID   TRXB_RICCN              Reviewed;         310 AA.
AC   Q92I02;
DT   23-JAN-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   03-AUG-2022, entry version 113.
DE   RecName: Full=Thioredoxin reductase;
DE            Short=TRXR;
DE            EC=1.8.1.9;
GN   Name=trxB; OrderedLocusNames=RC0618;
OS   Rickettsia conorii (strain ATCC VR-613 / Malish 7).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; spotted fever group.
OX   NCBI_TaxID=272944;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC VR-613 / Malish 7;
RX   PubMed=11557893; DOI=10.1126/science.1061471;
RA   Ogata H., Audic S., Renesto-Audiffren P., Fournier P.-E., Barbe V.,
RA   Samson D., Roux V., Cossart P., Weissenbach J., Claverie J.-M., Raoult D.;
RT   "Mechanisms of evolution in Rickettsia conorii and R. prowazekii.";
RL   Science 293:2093-2098(2001).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[thioredoxin]-dithiol + NADP(+) = [thioredoxin]-disulfide +
CC         H(+) + NADPH; Xref=Rhea:RHEA:20345, Rhea:RHEA-COMP:10698, Rhea:RHEA-
CC         COMP:10700, ChEBI:CHEBI:15378, ChEBI:CHEBI:29950, ChEBI:CHEBI:50058,
CC         ChEBI:CHEBI:57783, ChEBI:CHEBI:58349; EC=1.8.1.9;
CC   -!- COFACTOR:
CC       Name=FAD; Xref=ChEBI:CHEBI:57692;
CC         Evidence={ECO:0000250|UniProtKB:P0A9P4};
CC       Note=Binds 1 FAD per subunit. {ECO:0000250|UniProtKB:P0A9P4};
CC   -!- SUBUNIT: Homodimer. {ECO:0000250|UniProtKB:P0A9P4}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- MISCELLANEOUS: The active site is a redox-active disulfide bond.
CC   -!- SIMILARITY: Belongs to the class-II pyridine nucleotide-disulfide
CC       oxidoreductase family. {ECO:0000305}.
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DR   EMBL; AE006914; AAL03156.1; -; Genomic_DNA.
DR   PIR; B97777; B97777.
DR   RefSeq; WP_004995725.1; NC_003103.1.
DR   AlphaFoldDB; Q92I02; -.
DR   SMR; Q92I02; -.
DR   EnsemblBacteria; AAL03156; AAL03156; RC0618.
DR   KEGG; rco:RC0618; -.
DR   HOGENOM; CLU_031864_5_1_5; -.
DR   OMA; VDNFPGY; -.
DR   Proteomes; UP000000816; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004791; F:thioredoxin-disulfide reductase activity; IEA:UniProtKB-EC.
DR   GO; GO:0019430; P:removal of superoxide radicals; IEA:InterPro.
DR   Gene3D; 3.50.50.60; -; 2.
DR   InterPro; IPR036188; FAD/NAD-bd_sf.
DR   InterPro; IPR023753; FAD/NAD-binding_dom.
DR   InterPro; IPR008255; Pyr_nucl-diS_OxRdtase_2_AS.
DR   InterPro; IPR005982; Thioredox_Rdtase.
DR   Pfam; PF07992; Pyr_redox_2; 1.
DR   SUPFAM; SSF51905; SSF51905; 1.
DR   TIGRFAMs; TIGR01292; TRX_reduct; 1.
DR   PROSITE; PS00573; PYRIDINE_REDOX_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Disulfide bond; FAD; Flavoprotein; NADP; Oxidoreductase;
KW   Redox-active center.
FT   CHAIN           1..310
FT                   /note="Thioredoxin reductase"
FT                   /id="PRO_0000166742"
FT   BINDING         34..41
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000250|UniProtKB:P0A9P4"
FT   BINDING         281..290
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000250|UniProtKB:P0A9P4"
FT   DISULFID        135..138
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000250|UniProtKB:P0A9P4"
SQ   SEQUENCE   310 AA;  33469 MW;  0F1E04D6BC7E111B CRC64;
     MKITTKVLII GSGPAGLSAA IYTARAALKP ILINGMQPGG QLTITTDVEN YPGFAETVQG
     PWLMEQMYMQ AKNVGTEIVS DYVEKVDLSK RPFKVFTGAG NEYDAESIII CTGAEAKWLG
     IASEQKFRGF GVSACATCDG FFFKNQEIVV VGGGNSAVEE ALYLTNHANK VTIVHRRDSF
     RAEKILQDRL FKNSKISVIW DHVVDEIVGS NKPKSVTGVK IQNVHTKEIS LLNCSGVFIA
     IGHAPNTGLF TGQIVMDDDN YIITKSGTTR TSVEGVFAAG DVQDKIYRQA VTAAGTGCMA
     ALEAEKFLNK
 
 
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