ID   EXBB_XANCB              Reviewed;         253 AA.
AC   B0RLE6; O34260;
DT   10-JUN-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   25-MAY-2022, entry version 57.
DE   RecName: Full=Biopolymer transport protein ExbB;
GN   Name=exbB; OrderedLocusNames=xcc-b100_0009;
OS   Xanthomonas campestris pv. campestris (strain B100).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=509169;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=9371459; DOI=10.1128/jb.179.22.7103-7110.1997;
RA   Wiggerich H.G., Klauke B., Koeplin R., Priefer U.B., Puehler A.;
RT   "Unusual structure of the tonB-exb DNA region of Xanthomonas campestris pv.
RT   campestris: tonB, exbB, and exbD1 are essential for ferric iron uptake, but
RT   exbD2 is not.";
RL   J. Bacteriol. 179:7103-7110(1997).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=B100;
RX   PubMed=18304669; DOI=10.1016/j.jbiotec.2007.12.013;
RA   Vorhoelter F.-J., Schneiker S., Goesmann A., Krause L., Bekel T.,
RA   Kaiser O., Linke B., Patschkowski T., Rueckert C., Schmid J., Sidhu V.K.,
RA   Sieber V., Tauch A., Watt S.A., Weisshaar B., Becker A., Niehaus K.,
RA   Puehler A.;
RT   "The genome of Xanthomonas campestris pv. campestris B100 and its use for
RT   the reconstruction of metabolic pathways involved in xanthan
RT   biosynthesis.";
RL   J. Biotechnol. 134:33-45(2008).
CC   -!- FUNCTION: Involved in the TonB-dependent energy-dependent transport of
CC       various receptor-bound substrates. Protects ExbD from proteolytic
CC       degradation and functionally stabilizes TonB (By similarity).
CC       {ECO:0000250}.
CC   -!- SUBUNIT: The accessory proteins ExbB and ExbD seem to form a complex
CC       with TonB. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane; Multi-pass membrane protein.
CC   -!- SIMILARITY: Belongs to the ExbB/TolQ family. {ECO:0000305}.
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DR   EMBL; Z95386; CAB08609.1; -; Genomic_DNA.
DR   EMBL; AM920689; CAP49337.1; -; Genomic_DNA.
DR   AlphaFoldDB; B0RLE6; -.
DR   SMR; B0RLE6; -.
DR   KEGG; xca:xcc-b100_0009; -.
DR   HOGENOM; CLU_053325_2_0_6; -.
DR   OMA; NRFAHDL; -.
DR   Proteomes; UP000001188; 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:0015031; P:protein transport; IEA:UniProtKB-KW.
DR   InterPro; IPR002898; MotA_ExbB_proton_chnl.
DR   Pfam; PF01618; MotA_ExbB; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Membrane; Protein transport;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..253
FT                   /note="Biopolymer transport protein ExbB"
FT                   /id="PRO_0000339183"
FT   TRANSMEM        39..59
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        163..183
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        204..224
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   CONFLICT        114
FT                   /note="A -> R (in Ref. 1; CAB08609)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   253 AA;  26666 MW;  90138F91BC714508 CRC64;
     MLQEFVIAAA AGGSNPSAAL SQMGFEHLIT EMTSSPGDFA VSWVVLITLI AMSAASWYWT
     VINIFRATRL KSAADRVTTA FWDAPNAQDA IRAMEEQPAS EPFSKIALDA AQAAAHHQRA
     EGSTGGMGES LSRSEFVDRA LRQAVTREST KLQSGMTLLA TVGATAPFVG LLGTVWGIYG
     ALIKIGATGS ASIDAVAGPV GEALIMTAIG LFVAIPAVFA FNFFSKVNSS VIAKFDTFAH
     DLHDFFATGS RVR