ID   FLHB_BUCAI              Reviewed;         383 AA.
AC   P57334;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   25-MAY-2022, entry version 112.
DE   RecName: Full=Flagellar biosynthetic protein FlhB;
GN   Name=flhB; OrderedLocusNames=BU240;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- FUNCTION: Required for formation of the rod structure in the basal body
CC       of the flagellar apparatus. Together with FliI and FliH, may constitute
CC       the export apparatus of flagellin (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000305}; Multi-pass membrane
CC       protein {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the type III secretion exporter family.
CC       {ECO:0000305}.
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DR   EMBL; BA000003; BAB12955.1; -; Genomic_DNA.
DR   RefSeq; NP_240069.1; NC_002528.1.
DR   RefSeq; WP_010896023.1; NC_002528.1.
DR   AlphaFoldDB; P57334; -.
DR   SMR; P57334; -.
DR   STRING; 107806.10038920; -.
DR   EnsemblBacteria; BAB12955; BAB12955; BAB12955.
DR   KEGG; buc:BU240; -.
DR   PATRIC; fig|107806.10.peg.253; -.
DR   eggNOG; COG1377; Bacteria.
DR   HOGENOM; CLU_041013_1_0_6; -.
DR   OMA; DEYKQQE; -.
DR   Proteomes; UP000001806; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0044780; P:bacterial-type flagellum assembly; IEA:InterPro.
DR   GO; GO:0009306; P:protein secretion; IEA:InterPro.
DR   Gene3D; 3.40.1690.10; -; 1.
DR   InterPro; IPR006136; FlhB.
DR   InterPro; IPR006135; T3SS_substrate_exporter.
DR   InterPro; IPR029025; T3SS_substrate_exporter_C.
DR   PANTHER; PTHR30531; PTHR30531; 1.
DR   Pfam; PF01312; Bac_export_2; 1.
DR   PRINTS; PR00950; TYPE3IMSPROT.
DR   SUPFAM; SSF160544; SSF160544; 1.
DR   TIGRFAMs; TIGR00328; flhB; 1.
PE   3: Inferred from homology;
KW   Bacterial flagellum biogenesis; Bacterial flagellum protein export;
KW   Cell membrane; Membrane; Protein transport; Reference proteome;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..383
FT                   /note="Flagellar biosynthetic protein FlhB"
FT                   /id="PRO_0000180946"
FT   TRANSMEM        35..55
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        89..109
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        142..162
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        189..209
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   383 AA;  44881 MW;  A43CD40472B464B5 CRC64;
     MNHNTNEEKT EHPTEHRIRK FRKKGKTRYS RELSSLFILL VGFINLWWYR DLIVLNFSKI
     MSDSFLFESN DFLNNNNNLL KILMSLKEIL FSFFPFLISL LIVIIIPPIL FSGISLNFRS
     LTLNFSKLNP FHGFKRLFSF QIIVEFFKII LKLFIVSIIS FWYLQFSFSE ILFLVNANYV
     SSLSHGYNII FSCCFLVILG LFPIVFFDIA WQQFNYYKKL KMTRQEMRDE LKEKEGNPNI
     KMRIRQAMKA VMRRRMIINT PKADVIITNP IHYSVALKYD EKNMNAPKVI AKGIGEAAIK
     IQNLALKHNI SIISVPSLAR SLYRYSEIGQ YIPGPLYKAV AEVLAWVWKV RKWKKEGGIF
     PEKPINISVP SELTFTGEHE TND