ID   TOLB_SHIFL              Reviewed;         430 AA.
AC   Q83MM7;
DT   11-JUL-2003, integrated into UniProtKB/Swiss-Prot.
DT   11-JUL-2003, sequence version 2.
DT   25-MAY-2022, entry version 114.
DE   RecName: Full=Tol-Pal system protein TolB {ECO:0000255|HAMAP-Rule:MF_00671};
DE   Flags: Precursor;
GN   Name=tolB {ECO:0000255|HAMAP-Rule:MF_00671};
GN   OrderedLocusNames=SF0557, S0570;
OS   Shigella flexneri.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=623;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=301 / Serotype 2a;
RX   PubMed=12384590; DOI=10.1093/nar/gkf566;
RA   Jin Q., Yuan Z., Xu J., Wang Y., Shen Y., Lu W., Wang J., Liu H., Yang J.,
RA   Yang F., Zhang X., Zhang J., Yang G., Wu H., Qu D., Dong J., Sun L.,
RA   Xue Y., Zhao A., Gao Y., Zhu J., Kan B., Ding K., Chen S., Cheng H.,
RA   Yao Z., He B., Chen R., Ma D., Qiang B., Wen Y., Hou Y., Yu J.;
RT   "Genome sequence of Shigella flexneri 2a: insights into pathogenicity
RT   through comparison with genomes of Escherichia coli K12 and O157.";
RL   Nucleic Acids Res. 30:4432-4441(2002).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700930 / 2457T / Serotype 2a;
RX   PubMed=12704152; DOI=10.1128/iai.71.5.2775-2786.2003;
RA   Wei J., Goldberg M.B., Burland V., Venkatesan M.M., Deng W., Fournier G.,
RA   Mayhew G.F., Plunkett G. III, Rose D.J., Darling A., Mau B., Perna N.T.,
RA   Payne S.M., Runyen-Janecky L.J., Zhou S., Schwartz D.C., Blattner F.R.;
RT   "Complete genome sequence and comparative genomics of Shigella flexneri
RT   serotype 2a strain 2457T.";
RL   Infect. Immun. 71:2775-2786(2003).
CC   -!- FUNCTION: Part of the Tol-Pal system, which plays a role in outer
CC       membrane invagination during cell division and is important for
CC       maintaining outer membrane integrity. TolB occupies a key intermediary
CC       position in the Tol-Pal system because it communicates directly with
CC       both membrane-embedded components, Pal in the outer membrane and TolA
CC       in the inner membrane. {ECO:0000255|HAMAP-Rule:MF_00671}.
CC   -!- SUBUNIT: The Tol-Pal system is composed of five core proteins: the
CC       inner membrane proteins TolA, TolQ and TolR, the periplasmic protein
CC       TolB and the outer membrane protein Pal. They form a network linking
CC       the inner and outer membranes and the peptidoglycan layer.
CC       {ECO:0000255|HAMAP-Rule:MF_00671}.
CC   -!- SUBCELLULAR LOCATION: Periplasm {ECO:0000255|HAMAP-Rule:MF_00671}.
CC   -!- SIMILARITY: Belongs to the TolB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00671, ECO:0000305}.
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DR   EMBL; AE005674; AAN42201.2; -; Genomic_DNA.
DR   EMBL; AE014073; AAP16074.1; -; Genomic_DNA.
DR   RefSeq; NP_706494.2; NC_004337.2.
DR   AlphaFoldDB; Q83MM7; -.
DR   SMR; Q83MM7; -.
DR   STRING; 198214.SF0557; -.
DR   EnsemblBacteria; AAN42201; AAN42201; SF0557.
DR   EnsemblBacteria; AAP16074; AAP16074; S0570.
DR   GeneID; 1023467; -.
DR   KEGG; sfl:SF0557; -.
DR   KEGG; sfx:S0570; -.
DR   PATRIC; fig|198214.7.peg.646; -.
DR   HOGENOM; CLU_047123_0_0_6; -.
DR   Proteomes; UP000001006; Chromosome.
DR   Proteomes; UP000002673; Chromosome.
DR   GO; GO:0042597; C:periplasmic space; IEA:UniProtKB-SubCell.
DR   GO; GO:0007049; P:cell cycle; IEA:UniProtKB-KW.
DR   GO; GO:0051301; P:cell division; IEA:UniProtKB-UniRule.
DR   GO; GO:0017038; P:protein import; IEA:InterPro.
DR   Gene3D; 2.120.10.30; -; 1.
DR   HAMAP; MF_00671; TolB; 1.
DR   InterPro; IPR011042; 6-blade_b-propeller_TolB-like.
DR   InterPro; IPR011659; PD40.
DR   InterPro; IPR014167; Tol-Pal_TolB.
DR   InterPro; IPR007195; TolB_N.
DR   Pfam; PF07676; PD40; 4.
DR   Pfam; PF04052; TolB_N; 1.
DR   TIGRFAMs; TIGR02800; propeller_TolB; 1.
PE   3: Inferred from homology;
KW   Cell cycle; Cell division; Periplasm; Reference proteome; Signal.
FT   SIGNAL          1..21
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00671"
FT   CHAIN           22..430
FT                   /note="Tol-Pal system protein TolB"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00671"
FT                   /id="PRO_0000034687"
FT   CONFLICT        200
FT                   /note="H -> Q (in Ref. 2; AAP16074)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        308
FT                   /note="L -> Q (in Ref. 2; AAP16074)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   430 AA;  45950 MW;  D1DF9EE9867FB1F5 CRC64;
     MKQALRVAFG FLILWASVLH AEVRIVIDSG VDSGRPIGVV PFQWAGPGAA PEDIGGIVAA
     DLRNSGKFNP LDRARLPQQP GSAQEVQPAA WSALGIDAVV VGQVTPNPDG SYNVAYQLVD
     TGGAPGTVLA QNSYKVNKQW LRYAGHTASD EVFEKLTGIK GAFRTRIAYV VQTNGGQFPY
     ELRVSDYDGY NQFVVHRSPH PLMSPAWSPD GSKLAYVTFE SGRSALVIQT LANGAVRQVA
     SFPRHNGAPA FSPDGSKLAF ALSKTGSLNL YVMDLASGQI RQVTDGRSNN TEPTWFPDSQ
     NLAFTSDLAG RPQVYKVNIN GGAPQRITWE GSQNQDADVS SDGKFMVMVS SNGGQQHIAK
     QDLATGGVQV LSSTFLDETP SLAPNGTMVI YSSSQGMGSV LNLVSTDGRF KARLPATDGQ
     VKFPAWSPYL