ID   TONB_PSEPU              Reviewed;         243 AA.
AC   Q05613;
DT   01-OCT-1994, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1994, sequence version 1.
DT   25-MAY-2022, entry version 80.
DE   RecName: Full=Protein TonB;
GN   Name=tonB;
OS   Pseudomonas putida (Arthrobacter siderocapsulatus).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=303;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=WCS358;
RX   PubMed=8437515; DOI=10.1111/j.1365-2958.1993.tb01103.x;
RA   Bitter W., Tommassen J., Weisbeek P.J.;
RT   "Identification and characterization of the exbB, exbD and tonB genes of
RT   Pseudomonas putida WCS358: their involvement in ferric-pseudobactin
RT   transport.";
RL   Mol. Microbiol. 7:117-130(1993).
CC   -!- FUNCTION: Interacts with outer membrane receptor proteins that carry
CC       out high-affinity binding and energy dependent uptake into the
CC       periplasmic space of specific substrates. It could act to transduce
CC       energy from the cytoplasmic membrane to specific energy-requiring
CC       processes in the outer membrane, resulting in the release into the
CC       periplasm of ligands bound by these outer membrane proteins (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBUNIT: Homodimer. Forms a complex with the accessory proteins ExbB
CC       and ExbD (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane; Single-pass membrane
CC       protein; Periplasmic side.
CC   -!- SIMILARITY: Belongs to the TonB family. {ECO:0000305}.
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DR   EMBL; X70139; CAA49716.1; -; Genomic_DNA.
DR   PIR; S28444; S28444.
DR   AlphaFoldDB; Q05613; -.
DR   SMR; Q05613; -.
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   GO; GO:0055085; P:transmembrane transport; IEA:InterPro.
DR   InterPro; IPR006260; TonB/TolA_C.
DR   InterPro; IPR037682; TonB_C.
DR   Pfam; PF03544; TonB_C; 1.
DR   TIGRFAMs; TIGR01352; tonB_Cterm; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Membrane; Protein transport;
KW   Signal-anchor; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..243
FT                   /note="Protein TonB"
FT                   /id="PRO_0000196208"
FT   TOPO_DOM        1..12
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        13..32
FT                   /note="Helical; Signal-anchor"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        33..243
FT                   /note="Periplasmic"
FT                   /evidence="ECO:0000255"
FT   REGION          54..151
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        54..74
FT                   /note="Pro residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        98..116
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        124..151
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   243 AA;  25993 MW;  6575C15A147A2774 CRC64;
     MTKTRHNLAR YSGSLALVLG VHAVAVLLTL NWSVPQAIEL PPAAMMVELA PLPEPAPPPP
     PKAAPQPPAP VEELPLPKLV EAPKPKIAIA KPPKPKAKPQ PPKPEKKPEP PKEAPPTEEV
     VDAPPSNTPP QKSAAPAPSI ASNSNALPTW QSDPVRHLAK YKRYPEDARR RGLQGINRLR
     FVVDAEGKVV SYAMAGGSGS AALDRATLEM IRRAGTVPKP PPELLNNGTI EVVAPFVYSL
     DRR