ID   FABR_ECODH              Reviewed;         215 AA.
AC   B1XBX4;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=HTH-type transcriptional repressor FabR {ECO:0000255|HAMAP-Rule:MF_01190};
GN   Name=fabR {ECO:0000255|HAMAP-Rule:MF_01190};
GN   OrderedLocusNames=ECDH10B_4152;
OS   Escherichia coli (strain K12 / DH10B).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=316385;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / DH10B;
RX   PubMed=18245285; DOI=10.1128/jb.01695-07;
RA   Durfee T., Nelson R., Baldwin S., Plunkett G. III, Burland V., Mau B.,
RA   Petrosino J.F., Qin X., Muzny D.M., Ayele M., Gibbs R.A., Csorgo B.,
RA   Posfai G., Weinstock G.M., Blattner F.R.;
RT   "The complete genome sequence of Escherichia coli DH10B: insights into the
RT   biology of a laboratory workhorse.";
RL   J. Bacteriol. 190:2597-2606(2008).
CC   -!- FUNCTION: Represses the transcription of fabB, involved in unsaturated
CC       fatty acid (UFA) biosynthesis. By controlling UFA production, FabR
CC       directly influences the physical properties of the membrane bilayer.
CC       {ECO:0000255|HAMAP-Rule:MF_01190}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01190}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01190}.
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DR   EMBL; CP000948; ACB04974.1; -; Genomic_DNA.
DR   AlphaFoldDB; B1XBX4; -.
DR   SMR; B1XBX4; -.
DR   KEGG; ecd:ECDH10B_4152; -.
DR   HOGENOM; CLU_081861_0_0_6; -.
DR   OMA; REHWRFI; -.
DR   BioCyc; ECOL316385:ECDH10B_RS21150-MON; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006633; P:fatty acid biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0045717; P:negative regulation of fatty acid biosynthetic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01190; HTH_type_FabR; 1.
DR   InterPro; IPR009057; Homeobox-like_sf.
DR   InterPro; IPR001647; HTH_TetR.
DR   InterPro; IPR023764; Tscrpt_reg_HTH_FabR.
DR   Pfam; PF00440; TetR_N; 1.
DR   SUPFAM; SSF46689; SSF46689; 1.
DR   PROSITE; PS50977; HTH_TETR_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; DNA-binding; Fatty acid biosynthesis; Fatty acid metabolism;
KW   Lipid biosynthesis; Lipid metabolism; Repressor; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..215
FT                   /note="HTH-type transcriptional repressor FabR"
FT                   /id="PRO_1000138359"
FT   DOMAIN          10..70
FT                   /note="HTH tetR-type"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01190"
FT   DNA_BIND        33..52
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01190"
SQ   SEQUENCE   215 AA;  24404 MW;  ACA9739EA947E256 CRC64;
     MGVRAQQKEK TRRSLVEAAF SQLSAERSFA SLSLREVARE AGIAPTSFYR HFRDVDELGL
     TMVDESGLML RQLMRQARQR IAKGGSVIRT SVSTFMEFIG NNPNAFRLLL RERSGTSAAF
     RAAVAREIQH FIAELADYLE LENHMPRAFT EAQAEAMVTI VFSAGAEALD VGVEQRRQLE
     ERLVLQLRMI SKGAYYWYRR EQEKTAIIPG NVKDE