ID   FLHD_ECOLC              Reviewed;         116 AA.
AC   B1J0J6;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 75.
DE   RecName: Full=Flagellar transcriptional regulator FlhD {ECO:0000255|HAMAP-Rule:MF_00725};
GN   Name=flhD {ECO:0000255|HAMAP-Rule:MF_00725}; OrderedLocusNames=EcolC_1740;
OS   Escherichia coli (strain ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 /
OS   WDCM 00012 / Crooks).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=481805;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 / WDCM 00012 / Crooks;
RA   Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Kiss H., Brettin T., Detter J.C., Han C.,
RA   Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Mikhailova N., Ingram L., Richardson P.;
RT   "Complete sequence of Escherichia coli C str. ATCC 8739.";
RL   Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Functions in complex with FlhC as a master transcriptional
CC       regulator that regulates transcription of several flagellar and non-
CC       flagellar operons by binding to their promoter region. Activates
CC       expression of class 2 flagellar genes, including fliA, which is a
CC       flagellum-specific sigma factor that turns on the class 3 genes. Also
CC       regulates genes whose products function in a variety of physiological
CC       pathways. {ECO:0000255|HAMAP-Rule:MF_00725}.
CC   -!- SUBUNIT: Homodimer; disulfide-linked. Forms a heterohexamer composed of
CC       two FlhC and four FlhD subunits. Each FlhC binds a FlhD dimer, forming
CC       a heterotrimer, and a hexamer assembles by dimerization of two
CC       heterotrimers. {ECO:0000255|HAMAP-Rule:MF_00725}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00725}.
CC   -!- DOMAIN: The C-terminal region contains a putative helix-turn-helix
CC       (HTH) motif, suggesting that this region may bind DNA.
CC       {ECO:0000255|HAMAP-Rule:MF_00725}.
CC   -!- SIMILARITY: Belongs to the FlhD family. {ECO:0000255|HAMAP-
CC       Rule:MF_00725}.
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DR   EMBL; CP000946; ACA77390.1; -; Genomic_DNA.
DR   RefSeq; WP_001295647.1; NZ_CP022959.1.
DR   AlphaFoldDB; B1J0J6; -.
DR   SMR; B1J0J6; -.
DR   GeneID; 58462231; -.
DR   KEGG; ecl:EcolC_1740; -.
DR   HOGENOM; CLU_144160_0_0_6; -.
DR   OMA; REDKPMG; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0044780; P:bacterial-type flagellum assembly; IEA:InterPro.
DR   GO; GO:0045893; P:positive regulation of transcription, DNA-templated; IEA:InterPro.
DR   GO; GO:1902208; P:regulation of bacterial-type flagellum assembly; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.4000.10; -; 1.
DR   HAMAP; MF_00725; FlhD; 1.
DR   InterPro; IPR023559; Flagellar_FlhD.
DR   InterPro; IPR036194; FlhD_sf.
DR   Pfam; PF05247; FlhD; 1.
DR   SUPFAM; SSF63592; SSF63592; 1.
PE   3: Inferred from homology;
KW   Activator; Bacterial flagellum biogenesis; Cytoplasm; Disulfide bond;
KW   DNA-binding; Transcription; Transcription regulation.
FT   CHAIN           1..116
FT                   /note="Flagellar transcriptional regulator FlhD"
FT                   /id="PRO_1000083316"
FT   DISULFID        65
FT                   /note="Interchain"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00725"
SQ   SEQUENCE   116 AA;  13316 MW;  593287239E9A4C16 CRC64;
     MHTSELLKHI YDINLSYLLL AQRLIVQDKA SAMFRLGINE EMATTLAALT LPQMVKLAET
     NQLVCHFRFD SHQTITQLTQ DSRVDDLQQI HTGIMLSTRL LNDVNQPEEA LRKKRA