ID   FLID_ALKHC              Reviewed;         532 AA.
AC   Q9K6W0;
DT   26-SEP-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=Flagellar hook-associated protein 2;
DE            Short=HAP2;
DE   AltName: Full=Filament cap protein;
DE   AltName: Full=Flagellar cap protein;
GN   Name=fliD; OrderedLocusNames=BH3614;
OS   Alkalihalobacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344
OS   / JCM 9153 / C-125) (Bacillus halodurans).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=272558;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125;
RX   PubMed=11058132; DOI=10.1093/nar/28.21.4317;
RA   Takami H., Nakasone K., Takaki Y., Maeno G., Sasaki R., Masui N., Fuji F.,
RA   Hirama C., Nakamura Y., Ogasawara N., Kuhara S., Horikoshi K.;
RT   "Complete genome sequence of the alkaliphilic bacterium Bacillus halodurans
RT   and genomic sequence comparison with Bacillus subtilis.";
RL   Nucleic Acids Res. 28:4317-4331(2000).
CC   -!- FUNCTION: Required for the morphogenesis and for the elongation of the
CC       flagellar filament by facilitating polymerization of the flagellin
CC       monomers at the tip of growing filament. Forms a capping structure,
CC       which prevents flagellin subunits (transported through the central
CC       channel of the flagellum) from leaking out without polymerization at
CC       the distal end (By similarity). {ECO:0000250}.
CC   -!- SUBUNIT: Homopentamer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Secreted. Bacterial flagellum.
CC   -!- SIMILARITY: Belongs to the FliD family. {ECO:0000305}.
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DR   EMBL; BA000004; BAB07333.1; -; Genomic_DNA.
DR   PIR; F84101; F84101.
DR   RefSeq; WP_010899742.1; NC_002570.2.
DR   AlphaFoldDB; Q9K6W0; -.
DR   SMR; Q9K6W0; -.
DR   STRING; 272558.10176238; -.
DR   EnsemblBacteria; BAB07333; BAB07333; BAB07333.
DR   KEGG; bha:BH3614; -.
DR   eggNOG; COG1345; Bacteria.
DR   HOGENOM; CLU_015182_0_2_9; -.
DR   OMA; TLEWQRD; -.
DR   OrthoDB; 883503at2; -.
DR   Proteomes; UP000001258; Chromosome.
DR   GO; GO:0009421; C:bacterial-type flagellum filament cap; IEA:InterPro.
DR   GO; GO:0009424; C:bacterial-type flagellum hook; IEA:InterPro.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0007155; P:cell adhesion; IEA:InterPro.
DR   InterPro; IPR040026; FliD.
DR   InterPro; IPR010809; FliD_C.
DR   InterPro; IPR003481; FliD_N.
DR   PANTHER; PTHR30288; PTHR30288; 1.
DR   Pfam; PF07195; FliD_C; 1.
DR   Pfam; PF02465; FliD_N; 1.
PE   3: Inferred from homology;
KW   Bacterial flagellum; Coiled coil; Reference proteome; Secreted.
FT   CHAIN           1..532
FT                   /note="Flagellar hook-associated protein 2"
FT                   /id="PRO_0000177013"
FT   COILED          507..528
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   532 AA;  59408 MW;  6853D6A9A5A52334 CRC64;
     MRIGGIASGI DTESMIKQLM QVERIPLNKF TQRKITLEWQ RDAYREVNLL LKKLDDAAAN
     IRLRSSLNTK EASTTSKAFT AQPNAQVRNG SYQLKVNQIA TQSRNISSEA ISNGSTKIST
     TRALNEQNVY ADGLNIEDYH GQTFTITTYN SSGAAVEKSF TIDTSKSLDS LFKDINSAGL
     GVRMSYNSTY DKVIIERTET GAFNAADGSN DYQIVFGGDT GFLNDVLKLN QANEVSGTNA
     EVEFIDPIMS SEPIVVSDSR TNRVTVGGIT FSLTGTTEGF ETLNVSSNTD AAFEKVMEFV
     DTYNATITEL RSLLSEPRYR DYPPLTEEQR RELSEREAEL WDEKAKSGLL RNDSMLNSLL
     AQMRADLYAP VQTNGQFSSI TQIGITTSSD YRLGGFLEVD EDKLRAALEA DPDSVHQLLN
     GTANSSLTSI PVKDRTSQQR SEIYSQTGLV GRIRSSLSST MNDIVARAGN ERRTEQQFTI
     GRQILDVDKR IDHFQQRLIQ IENRYWAQFS RMEQMMNQAN AQYASLQQFF VT