ID   TATB_SHEON              Reviewed;         149 AA.
AC   Q8E9R3;
DT   23-APR-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 95.
DE   RecName: Full=Sec-independent protein translocase protein TatB {ECO:0000255|HAMAP-Rule:MF_00237};
GN   Name=tatB {ECO:0000255|HAMAP-Rule:MF_00237}; OrderedLocusNames=SO_4203;
OS   Shewanella oneidensis (strain MR-1).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC   Shewanellaceae; Shewanella.
OX   NCBI_TaxID=211586;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MR-1;
RX   PubMed=12368813; DOI=10.1038/nbt749;
RA   Heidelberg J.F., Paulsen I.T., Nelson K.E., Gaidos E.J., Nelson W.C.,
RA   Read T.D., Eisen J.A., Seshadri R., Ward N.L., Methe B.A., Clayton R.A.,
RA   Meyer T., Tsapin A., Scott J., Beanan M.J., Brinkac L.M., Daugherty S.C.,
RA   DeBoy R.T., Dodson R.J., Durkin A.S., Haft D.H., Kolonay J.F., Madupu R.,
RA   Peterson J.D., Umayam L.A., White O., Wolf A.M., Vamathevan J.J.,
RA   Weidman J.F., Impraim M., Lee K., Berry K.J., Lee C., Mueller J.,
RA   Khouri H.M., Gill J., Utterback T.R., McDonald L.A., Feldblyum T.V.,
RA   Smith H.O., Venter J.C., Nealson K.H., Fraser C.M.;
RT   "Genome sequence of the dissimilatory metal ion-reducing bacterium
RT   Shewanella oneidensis.";
RL   Nat. Biotechnol. 20:1118-1123(2002).
CC   -!- FUNCTION: Part of the twin-arginine translocation (Tat) system that
CC       transports large folded proteins containing a characteristic twin-
CC       arginine motif in their signal peptide across membranes. Together with
CC       TatC, TatB is part of a receptor directly interacting with Tat signal
CC       peptides. TatB may form an oligomeric binding site that transiently
CC       accommodates folded Tat precursor proteins before their translocation.
CC       {ECO:0000255|HAMAP-Rule:MF_00237}.
CC   -!- SUBUNIT: The Tat system comprises two distinct complexes: a TatABC
CC       complex, containing multiple copies of TatA, TatB and TatC subunits,
CC       and a separate TatA complex, containing only TatA subunits. Substrates
CC       initially bind to the TatABC complex, which probably triggers
CC       association of the separate TatA complex to form the active translocon.
CC       {ECO:0000255|HAMAP-Rule:MF_00237}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00237}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00237}.
CC   -!- SIMILARITY: Belongs to the TatB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00237}.
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DR   EMBL; AE014299; AAN57175.1; -; Genomic_DNA.
DR   RefSeq; NP_719731.1; NC_004347.2.
DR   RefSeq; WP_011073886.1; NZ_CP053946.1.
DR   AlphaFoldDB; Q8E9R3; -.
DR   SMR; Q8E9R3; -.
DR   STRING; 211586.SO_4203; -.
DR   PaxDb; Q8E9R3; -.
DR   KEGG; son:SO_4203; -.
DR   PATRIC; fig|211586.12.peg.4059; -.
DR   eggNOG; COG1826; Bacteria.
DR   HOGENOM; CLU_086034_1_0_6; -.
DR   OMA; GQFQEAM; -.
DR   OrthoDB; 2073616at2; -.
DR   PhylomeDB; Q8E9R3; -.
DR   BioCyc; SONE211586:G1GMP-3876-MON; -.
DR   Proteomes; UP000008186; Chromosome.
DR   GO; GO:0005887; C:integral component of plasma membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0033281; C:TAT protein transport complex; IEA:UniProtKB-UniRule.
DR   GO; GO:0008320; F:protein transmembrane transporter activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0043953; P:protein transport by the Tat complex; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00237; TatB; 1.
DR   InterPro; IPR003369; TatA/B/E.
DR   InterPro; IPR018448; TatB.
DR   Pfam; PF02416; TatA_B_E; 1.
DR   TIGRFAMs; TIGR01410; tatB; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Membrane; Protein transport;
KW   Reference proteome; Translocation; Transmembrane; Transmembrane helix;
KW   Transport.
FT   CHAIN           1..149
FT                   /note="Sec-independent protein translocase protein TatB"
FT                   /id="PRO_0000192670"
FT   TRANSMEM        1..22
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT   REGION          86..149
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   149 AA;  16170 MW;  08ACED24D828BCA0 CRC64;
     MFDGIGFMEL LLIGVLGLIV LGPERLPVAV RSVTSWVRAM KRMANSVKEE LEQELKIEQL
     HADLKKAESK GLSNLSPELQ ESIEQLKQAA QSVNRPYQVQ DTPSAQDNQI HNPASQTVST
     EASSTSASSA PKSESIQGED PRSNTKANG