ID   HDFR_SHIDS              Reviewed;         279 AA.
AC   Q329U3;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, sequence version 1.
DT   25-MAY-2022, entry version 88.
DE   RecName: Full=HTH-type transcriptional regulator HdfR {ECO:0000255|HAMAP-Rule:MF_01233};
DE   AltName: Full=H-NS-dependent flhDC regulator {ECO:0000255|HAMAP-Rule:MF_01233};
GN   Name=hdfR {ECO:0000255|HAMAP-Rule:MF_01233}; OrderedLocusNames=SDY_3985;
OS   Shigella dysenteriae serotype 1 (strain Sd197).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=300267;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sd197;
RX   PubMed=16275786; DOI=10.1093/nar/gki954;
RA   Yang F., Yang J., Zhang X., Chen L., Jiang Y., Yan Y., Tang X., Wang J.,
RA   Xiong Z., Dong J., Xue Y., Zhu Y., Xu X., Sun L., Chen S., Nie H., Peng J.,
RA   Xu J., Wang Y., Yuan Z., Wen Y., Yao Z., Shen Y., Qiang B., Hou Y., Yu J.,
RA   Jin Q.;
RT   "Genome dynamics and diversity of Shigella species, the etiologic agents of
RT   bacillary dysentery.";
RL   Nucleic Acids Res. 33:6445-6458(2005).
CC   -!- FUNCTION: Negatively regulates the transcription of the flagellar
CC       master operon flhDC by binding to the upstream region of the operon.
CC       {ECO:0000255|HAMAP-Rule:MF_01233}.
CC   -!- SIMILARITY: Belongs to the LysR transcriptional regulatory family.
CC       {ECO:0000305}.
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DR   EMBL; CP000034; ABB63912.1; -; Genomic_DNA.
DR   RefSeq; WP_000379246.1; NC_007606.1.
DR   RefSeq; YP_405403.1; NC_007606.1.
DR   AlphaFoldDB; Q329U3; -.
DR   SMR; Q329U3; -.
DR   STRING; 300267.SDY_3985; -.
DR   EnsemblBacteria; ABB63912; ABB63912; SDY_3985.
DR   GeneID; 66672334; -.
DR   KEGG; sdy:SDY_3985; -.
DR   PATRIC; fig|300267.13.peg.4699; -.
DR   HOGENOM; CLU_039613_8_2_6; -.
DR   OMA; ESLMNTW; -.
DR   Proteomes; UP000002716; Chromosome.
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:0045892; P:negative regulation of transcription, DNA-templated; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.10.10; -; 1.
DR   HAMAP; MF_01233; HTH_type_HdfR; 1.
DR   InterPro; IPR005119; LysR_subst-bd.
DR   InterPro; IPR020890; Tscrpt_reg_HTH_HdfR.
DR   InterPro; IPR000847; Tscrpt_reg_HTH_LysR.
DR   InterPro; IPR036388; WH-like_DNA-bd_sf.
DR   InterPro; IPR036390; WH_DNA-bd_sf.
DR   Pfam; PF00126; HTH_1; 1.
DR   Pfam; PF03466; LysR_substrate; 1.
DR   PRINTS; PR00039; HTHLYSR.
DR   SUPFAM; SSF46785; SSF46785; 1.
DR   PROSITE; PS50931; HTH_LYSR; 1.
PE   3: Inferred from homology;
KW   DNA-binding; Reference proteome; Repressor; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..279
FT                   /note="HTH-type transcriptional regulator HdfR"
FT                   /id="PRO_1000066898"
FT   DOMAIN          1..58
FT                   /note="HTH lysR-type"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01233"
FT   DNA_BIND        18..37
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01233"
SQ   SEQUENCE   279 AA;  31776 MW;  44BFF5A542BDE913 CRC64;
     MDTELLKTFL EVSRTRHFGR AAESLYLTQS AVSFRIRQLE NQLGVNLFTR HRNNIRLTAA
     GEKLLPYAET LMSTWQAARK EVAHTSRHNE FSIGASASLW ECMLNQWLGR LYQNQDAHTG
     LQFEARIAQR QSLVKQLHER QLDLLITTEA PKMDEFSSQL LGYFTLALYT SAPSKLKGDL
     NYLRLEWGPD FQQHEAGLIG ADEVPILTTS SAELAQQQIA MLNGCTWLPV SWARKKGGLH
     TVVDSTTLSR PLYAIWLQNS DKNTLIRDLL KINVLDEVY