ID   THIO_BUCAP              Reviewed;         108 AA.
AC   O51890;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-1998, sequence version 1.
DT   03-AUG-2022, entry version 127.
DE   RecName: Full=Thioredoxin;
DE            Short=Trx;
GN   Name=trxA; OrderedLocusNames=BUsg_573;
OS   Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=198804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=9516544; DOI=10.1007/pl00006760;
RA   Clark M.A., Baumann L., Baumann P.;
RT   "Sequence analysis of a 34.7-kb DNA segment from the genome of Buchnera
RT   aphidicola (endosymbiont of aphids) containing groEL, dnaA, the atp operon,
RT   gidA, and rho.";
RL   Curr. Microbiol. 36:158-163(1998).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sg;
RX   PubMed=12089438; DOI=10.1126/science.1071278;
RA   Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA   Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT   "50 million years of genomic stasis in endosymbiotic bacteria.";
RL   Science 296:2376-2379(2002).
CC   -!- FUNCTION: Participates in various redox reactions through the
CC       reversible oxidation of its active center dithiol to a disulfide and
CC       catalyzes dithiol-disulfide exchange reactions.
CC   -!- SIMILARITY: Belongs to the thioredoxin family. {ECO:0000305}.
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DR   EMBL; AF008210; AAC38128.1; -; Genomic_DNA.
DR   EMBL; AE013218; AAM68107.1; -; Genomic_DNA.
DR   RefSeq; WP_011054073.1; NC_004061.1.
DR   AlphaFoldDB; O51890; -.
DR   SMR; O51890; -.
DR   STRING; 198804.BUsg_573; -.
DR   EnsemblBacteria; AAM68107; AAM68107; BUsg_573.
DR   KEGG; bas:BUsg_573; -.
DR   eggNOG; COG3118; Bacteria.
DR   HOGENOM; CLU_090389_10_4_6; -.
DR   OMA; QVGVAPK; -.
DR   OrthoDB; 1630944at2; -.
DR   Proteomes; UP000000416; Chromosome.
DR   GO; GO:0015035; F:protein-disulfide reductase activity; IEA:InterPro.
DR   InterPro; IPR005746; Thioredoxin.
DR   InterPro; IPR036249; Thioredoxin-like_sf.
DR   InterPro; IPR013766; Thioredoxin_domain.
DR   Pfam; PF00085; Thioredoxin; 1.
DR   PIRSF; PIRSF000077; Thioredoxin; 1.
DR   SUPFAM; SSF52833; SSF52833; 1.
DR   TIGRFAMs; TIGR01068; thioredoxin; 1.
DR   PROSITE; PS51352; THIOREDOXIN_2; 1.
PE   3: Inferred from homology;
KW   Disulfide bond; Electron transport; Redox-active center; Transport.
FT   CHAIN           1..108
FT                   /note="Thioredoxin"
FT                   /id="PRO_0000120079"
FT   DOMAIN          2..108
FT                   /note="Thioredoxin"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00691"
FT   DISULFID        32..35
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00691"
SQ   SEQUENCE   108 AA;  12440 MW;  F3204CE0A323E9AE CRC64;
     MNKIIELTDQ NFEKEVLEHK SFVLVDFWAE WCNPCKILAP ILEEIAQEYF NKIKVGKLNI
     EKNPNTAPIY SIRGIPALLL FHGREVLATK VGAISKLQLK DFLDENIK