ID   TOLB_POLNA              Reviewed;         429 AA.
AC   A1VNY1;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 77.
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=Pnap_2050;
OS   Polaromonas naphthalenivorans (strain CJ2).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Polaromonas.
OX   NCBI_TaxID=365044;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CJ2;
RX   PubMed=19453698; DOI=10.1111/j.1462-2920.2009.01947.x;
RA   Yagi J.M., Sims D., Brettin T., Bruce D., Madsen E.L.;
RT   "The genome of Polaromonas naphthalenivorans strain CJ2, isolated from coal
RT   tar-contaminated sediment, reveals physiological and metabolic versatility
RT   and evolution through extensive horizontal gene transfer.";
RL   Environ. Microbiol. 11:2253-2270(2009).
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. {ECO:0000255|HAMAP-
CC       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; CP000529; ABM37359.1; -; Genomic_DNA.
DR   RefSeq; WP_011801439.1; NC_008781.1.
DR   AlphaFoldDB; A1VNY1; -.
DR   SMR; A1VNY1; -.
DR   STRING; 365044.Pnap_2050; -.
DR   EnsemblBacteria; ABM37359; ABM37359; Pnap_2050.
DR   KEGG; pna:Pnap_2050; -.
DR   eggNOG; COG0823; Bacteria.
DR   HOGENOM; CLU_047123_0_0_4; -.
DR   OMA; VREPSWG; -.
DR   OrthoDB; 821953at2; -.
DR   Proteomes; UP000000644; 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; 5.
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..28
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00671"
FT   CHAIN           29..429
FT                   /note="Tol-Pal system protein TolB"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00671"
FT                   /id="PRO_5000211049"
SQ   SEQUENCE   429 AA;  45844 MW;  A934E2E07CBF950F CRC64;
     MSITPSFSRR SVVSLLAAGA FSSMSAFAQF RVEVSGVGMT QLPIAIAPFR GEAQSPQKIG
     SIVKADLERS GMFRGVDAGG VVADENTRPD LASWRQKGAD AMVTGSVSPL ADGRFDVRLR
     LWDVVREQDL GGQSYTVTKS DLRLSAHRVS DFVYEKLTGE KGIFSTRIAY VTKAGQRYTL
     WVADSDGESA QSALASPEPI ISPAWSPSGA QLAYVSFESR KPVIYSHDVA TGKRRLLANF
     RGSNSAPAWS PDGSQLVATL SQAGGSQIYS IGLNGGDPKR LTQSSSIDTE PAFSPDGRLI
     YFVSDRGGSP QIYRMSPAGG NAERVTFTGS YNISPVVSPD GRWLAYVSRV GGGFKLHVME
     LSTGTVTSIT DTSADESPSF APNSRLIVYA TQQQGKEALM TTTLDGKIKA RLSGAGGDIR
     EPDWGPFQR