ID   TOLB_BLOPB              Reviewed;         453 AA.
AC   Q492W9;
DT   31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2005, sequence version 1.
DT   03-AUG-2022, entry version 90.
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}; OrderedLocusNames=BPEN_348;
OS   Blochmannia pennsylvanicus (strain BPEN).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; ant endosymbionts; Candidatus Blochmannia.
OX   NCBI_TaxID=291272;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BPEN;
RX   PubMed=16077009; DOI=10.1101/gr.3771305;
RA   Degnan P.H., Lazarus A.B., Wernegreen J.J.;
RT   "Genome sequence of Blochmannia pennsylvanicus indicates parallel
RT   evolutionary trends among bacterial mutualists of insects.";
RL   Genome Res. 15:1023-1033(2005).
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}.
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DR   EMBL; CP000016; AAZ40973.1; -; Genomic_DNA.
DR   RefSeq; WP_011282882.1; NC_007292.1.
DR   AlphaFoldDB; Q492W9; -.
DR   SMR; Q492W9; -.
DR   STRING; 291272.BPEN_348; -.
DR   EnsemblBacteria; AAZ40973; AAZ40973; BPEN_348.
DR   KEGG; bpn:BPEN_348; -.
DR   eggNOG; COG0823; Bacteria.
DR   HOGENOM; CLU_047123_0_0_6; -.
DR   OMA; VREPSWG; -.
DR   BioCyc; CBLO291272:BPEN_RS01710-MON; -.
DR   Proteomes; UP000007794; 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; 3.
DR   Pfam; PF04052; TolB_N; 1.
DR   TIGRFAMs; TIGR02800; propeller_TolB; 1.
PE   3: Inferred from homology;
KW   Cell cycle; Cell division; Periplasm; Signal.
FT   SIGNAL          1..34
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00671"
FT   CHAIN           35..453
FT                   /note="Tol-Pal system protein TolB"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00671"
FT                   /id="PRO_0000259030"
SQ   SEQUENCE   453 AA;  50848 MW;  B2D65A7F14C6A69B CRC64;
     MYLIIKKTHK LPHWLQKVSL SIMLIIFLWK PALLADMHIE ITCGVNAAHP IAVIPFTCVS
     NQYNKSISIE DIASIIAADL RNSSKFNTIP VEYLPHKPTK VSDVIPTFWE KLGINIIVLG
     TVHINYDESY IISYHLIDTS SNPALIISEN QYSVEKKWLR YVAHAISNEI FEKLTGIKGA
     FCTRIAYVLR IHNDHYPYEL YISDYDGHNQ ISICRSTEPL MSPAWSPDGK KIAYVTFASG
     HSELVIQALN TGLVNNIVSF PGHNGAPSFS PDCKKLAFSL SKTGSLNLYI MDLESGEITQ
     LTKNRNNNTE PSWFPDNQNI AYTSDQGGSP QIYKINVKTT EIQRLSWLHT SNQNPNVSSD
     GTFIIMVNRH QGKQNIAKLN LLTGQEEILT DTLLADSPSI APNNTMVLYS NINKDLTTKS
     NLELISIDGH FKAHIQGDQG DIRFPTWSPL HLE