ID   FLID_AERCA              Reviewed;         464 AA.
AC   Q9R9R6;
DT   26-SEP-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   25-MAY-2022, entry version 59.
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; Synonyms=flaH;
OS   Aeromonas caviae (Aeromonas punctata).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Aeromonadales;
OC   Aeromonadaceae; Aeromonas.
OX   NCBI_TaxID=648;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=Sch3N;
RX   PubMed=11401962; DOI=10.1128/iai.69.7.4257-4267.2001;
RA   Rabaan A.A., Gryllos I., Tomas J.M., Shaw J.G.;
RT   "Motility and the polar flagellum are required for Aeromonas caviae
RT   adherence to HEp-2 cells.";
RL   Infect. Immun. 69:4257-4267(2001).
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; AF198617; AAF19182.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q9R9R6; -.
DR   SMR; Q9R9R6; -.
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; IPR010810; Flagellin_hook_IN_motif.
DR   InterPro; IPR040026; FliD.
DR   InterPro; IPR010809; FliD_C.
DR   InterPro; IPR003481; FliD_N.
DR   PANTHER; PTHR30288; PTHR30288; 1.
DR   Pfam; PF07196; Flagellin_IN; 1.
DR   Pfam; PF07195; FliD_C; 1.
DR   Pfam; PF02465; FliD_N; 1.
PE   3: Inferred from homology;
KW   Bacterial flagellum; Coiled coil; Secreted.
FT   CHAIN           1..464
FT                   /note="Flagellar hook-associated protein 2"
FT                   /id="PRO_0000177011"
FT   COILED          403..436
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   464 AA;  48815 MW;  91CD372F4879720C CRC64;
     MAITSAGAGS GIDLESVISA SVSAKKAQLQ QPIITKQNST QITLSGIGQL KSSISAFTDI
     LDKLSAPGAF NKRAINITQS KDDPILKVEG KSGASNGQYN IIVNKLAETS RQEGIFDSST
     TPLATQDGQL TFKAGDKTFK VDVKAGDTLQ DIRKSINSNG DNFGLSVNIV NTADGKAKLV
     IDSGISGDGK DLTITGDNAE LGVFEAGGGV MSQTRAASSA EINVDGNVLK SDTNTFDDSI
     QDLKVTVLRV SDKDSAGDLK ANKVDITTDK TSIQELVQQF VDGYNTLQDK MNSLGKRNTF
     VGGVKQDDGG ALAGDSTTRA IESFMSNLLV SPSQNSGTYS TVFEIGIKMD NKGKLSLDKT
     KFGEAVDKNF DQVVALFGGE KGLASTLNSG LKEYTKSGGM LAQREDVLNS DLRALTQKTA
     TANAQLTKYE AALRAQYGSL DALLVKMNSS ASALATLQTS YQKS