ID   FLHD_ERWAC              Reviewed;         117 AA.
AC   D4HVG6;
DT   05-APR-2011, integrated into UniProtKB/Swiss-Prot.
DT   18-MAY-2010, sequence version 1.
DT   25-MAY-2022, entry version 54.
DE   RecName: Full=Flagellar transcriptional regulator FlhD {ECO:0000255|HAMAP-Rule:MF_00725};
GN   Name=flhD {ECO:0000255|HAMAP-Rule:MF_00725}; OrderedLocusNames=EAMY_2100;
OS   Erwinia amylovora (strain CFBP1430).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Erwinia.
OX   NCBI_TaxID=665029;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CFBP1430;
RX   PubMed=20192826; DOI=10.1094/mpmi-23-4-0384;
RA   Smits T.H., Rezzonico F., Kamber T., Blom J., Goesmann A., Frey J.E.,
RA   Duffy B.;
RT   "Complete genome sequence of the fire blight pathogen Erwinia amylovora
RT   CFBP 1430 and comparison to other Erwinia spp.";
RL   Mol. Plant Microbe Interact. 23:384-393(2010).
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; FN434113; CBA21053.1; -; Genomic_DNA.
DR   RefSeq; WP_004158054.1; NC_013961.1.
DR   AlphaFoldDB; D4HVG6; -.
DR   SMR; D4HVG6; -.
DR   STRING; 665029.EAMY_2100; -.
DR   EnsemblBacteria; CBA21053; CBA21053; EAMY_2100.
DR   GeneID; 8912839; -.
DR   KEGG; eam:EAMY_2100; -.
DR   PATRIC; fig|665029.3.peg.2014; -.
DR   eggNOG; ENOG5031P80; Bacteria.
DR   HOGENOM; CLU_144160_0_0_6; -.
DR   OMA; REDKPMG; -.
DR   OrthoDB; 2022460at2; -.
DR   Proteomes; UP000001841; Chromosome.
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..117
FT                   /note="Flagellar transcriptional regulator FlhD"
FT                   /id="PRO_0000406774"
FT   DISULFID        65
FT                   /note="Interchain"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00725"
SQ   SEQUENCE   117 AA;  13416 MW;  5D391F0A6C64F140 CRC64;
     MGTSELLKQI YDINLSYLLL AQRIINQEKV SAMFRLGIDE AMADALARLT LPEMVKLAET
     NQLVCQFRFD DHQSISRLTR ESRVEDLQQI HTGILLSSRL LRNVTKEQET PKKRAAS