ID   TATB_SHEB2              Reviewed;         166 AA.
AC   B8E6B2;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   25-MAY-2022, entry version 59.
DE   RecName: Full=Sec-independent protein translocase protein TatB {ECO:0000255|HAMAP-Rule:MF_00237};
GN   Name=tatB {ECO:0000255|HAMAP-Rule:MF_00237};
GN   OrderedLocusNames=Sbal223_0441;
OS   Shewanella baltica (strain OS223).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC   Shewanellaceae; Shewanella.
OX   NCBI_TaxID=407976;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=OS223;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Chertkov O., Meincke L., Brettin T.,
RA   Detter J.C., Han C., Kuske C.R., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Ovchinnikova G., Brettar I., Rodrigues J., Konstantinidis K.,
RA   Tiedje J.;
RT   "Complete sequence of chromosome of Shewanella baltica OS223.";
RL   Submitted (DEC-2008) to the EMBL/GenBank/DDBJ databases.
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; CP001252; ACK44975.1; -; Genomic_DNA.
DR   RefSeq; WP_012586614.1; NC_011663.1.
DR   AlphaFoldDB; B8E6B2; -.
DR   SMR; B8E6B2; -.
DR   EnsemblBacteria; ACK44975; ACK44975; Sbal223_0441.
DR   KEGG; sbp:Sbal223_0441; -.
DR   HOGENOM; CLU_086034_1_0_6; -.
DR   OMA; GQFQEAM; -.
DR   Proteomes; UP000002507; 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   Translocation; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..166
FT                   /note="Sec-independent protein translocase protein TatB"
FT                   /id="PRO_1000196662"
FT   TRANSMEM        2..22
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT   REGION          69..166
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        75..99
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        112..166
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   166 AA;  17748 MW;  ABFF302AFD626C56 CRC64;
     MFDGIGFMEL LLIGVLGLVV LGPERLPVAV RSITSWIRAM KRMANSVKEE LEQELKIEQL
     HADLKKAESK GLSNLSPELK ESIEQLKQAA QSVNRPYQVQ DPVKDTPAPE NQIHSPVAST
     VQTSPAQASQ ANPTATVEAS PTSASPATPS EPSQGADTRS NPKANG