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TRPR_ECOSM
ID   TRPR_ECOSM              Reviewed;         108 AA.
AC   B1LEK0;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 81.
DE   RecName: Full=Trp operon repressor {ECO:0000255|HAMAP-Rule:MF_00475};
GN   Name=trpR {ECO:0000255|HAMAP-Rule:MF_00475};
GN   OrderedLocusNames=EcSMS35_4945;
OS   Escherichia coli (strain SMS-3-5 / SECEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=439855;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SMS-3-5 / SECEC;
RX   PubMed=18708504; DOI=10.1128/jb.00661-08;
RA   Fricke W.F., Wright M.S., Lindell A.H., Harkins D.M., Baker-Austin C.,
RA   Ravel J., Stepanauskas R.;
RT   "Insights into the environmental resistance gene pool from the genome
RT   sequence of the multidrug-resistant environmental isolate Escherichia coli
RT   SMS-3-5.";
RL   J. Bacteriol. 190:6779-6794(2008).
CC   -!- FUNCTION: This protein is an aporepressor. When complexed with L-
CC       tryptophan it binds the operator region of the trp operon (5'-
CC       ACTAGT-'3') and prevents the initiation of transcription. The complex
CC       also regulates trp repressor biosynthesis by binding to its regulatory
CC       region. {ECO:0000255|HAMAP-Rule:MF_00475}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00475}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00475}.
CC   -!- SIMILARITY: Belongs to the TrpR family. {ECO:0000255|HAMAP-
CC       Rule:MF_00475}.
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DR   EMBL; CP000970; ACB15506.1; -; Genomic_DNA.
DR   RefSeq; WP_000068676.1; NC_010498.1.
DR   AlphaFoldDB; B1LEK0; -.
DR   BMRB; B1LEK0; -.
DR   SMR; B1LEK0; -.
DR   EnsemblBacteria; ACB15506; ACB15506; EcSMS35_4945.
DR   GeneID; 60903195; -.
DR   KEGG; ecm:EcSMS35_4945; -.
DR   HOGENOM; CLU_147939_0_0_6; -.
DR   OMA; GQMSQRE; -.
DR   Proteomes; UP000007011; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:InterPro.
DR   GO; GO:0043565; F:sequence-specific DNA binding; IEA:InterPro.
DR   GO; GO:0045892; P:negative regulation of transcription, DNA-templated; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.1270.10; -; 1.
DR   HAMAP; MF_00475; Trp_repressor; 1.
DR   InterPro; IPR000831; Trp_repress.
DR   InterPro; IPR013335; Trp_repress_bac.
DR   InterPro; IPR010921; Trp_repressor/repl_initiator.
DR   InterPro; IPR038116; TrpR-like_sf.
DR   PANTHER; PTHR38025; PTHR38025; 1.
DR   Pfam; PF01371; Trp_repressor; 1.
DR   PIRSF; PIRSF003196; Trp_repressor; 1.
DR   SUPFAM; SSF48295; SSF48295; 1.
DR   TIGRFAMs; TIGR01321; TrpR; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; DNA-binding; Repressor; Transcription; Transcription regulation.
FT   CHAIN           1..108
FT                   /note="Trp operon repressor"
FT                   /id="PRO_1000197143"
FT   DNA_BIND        68..91
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00475"
SQ   SEQUENCE   108 AA;  12391 MW;  F6A09A60EC4FE60E CRC64;
     MAQQSPYSAA MAEQRHQEWL RFVDLLKNAY QNDLHLPLLN LMLTPDEREA LGTRVRIVEE
     LLRGEMSQRE LKNELGAGIA TITRGSNSLK AAPVELRQWL EDVLLKDH
 
 
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