ID   TATB_GRABC              Reviewed;         177 AA.
AC   Q0BSQ0;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 80.
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=GbCGDNIH1_1254;
OS   Granulibacter bethesdensis (strain ATCC BAA-1260 / CGDNIH1).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Acetobacteraceae; Granulibacter.
OX   NCBI_TaxID=391165;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1260 / CGDNIH1;
RX   PubMed=17827295; DOI=10.1128/jb.00793-07;
RA   Greenberg D.E., Porcella S.F., Zelazny A.M., Virtaneva K., Sturdevant D.E.,
RA   Kupko J.J. III, Barbian K.D., Babar A., Dorward D.W., Holland S.M.;
RT   "Genome sequence analysis of the emerging human pathogenic acetic acid
RT   bacterium Granulibacter bethesdensis.";
RL   J. Bacteriol. 189:8727-8736(2007).
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; CP000394; ABI62152.1; -; Genomic_DNA.
DR   RefSeq; WP_011631961.1; NC_008343.2.
DR   AlphaFoldDB; Q0BSQ0; -.
DR   SMR; Q0BSQ0; -.
DR   STRING; 391165.GbCGDNIH1_1254; -.
DR   EnsemblBacteria; ABI62152; ABI62152; GbCGDNIH1_1254.
DR   KEGG; gbe:GbCGDNIH1_1254; -.
DR   eggNOG; COG1826; Bacteria.
DR   HOGENOM; CLU_086034_1_3_5; -.
DR   Proteomes; UP000001963; 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..177
FT                   /note="Sec-independent protein translocase protein TatB"
FT                   /id="PRO_0000301171"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT   REGION          136..177
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   177 AA;  19391 MW;  27211F9EBA69EDEC CRC64;
     MFDFAWSEIA VIGVVALVVI GPKDIPGAVR GVARMVRKAR SMAAEFQGQM DQMMKEADLG
     DVRETFNDLR GVNLRQQLSR TLDPDGSMRS TFDNNPMAPS PAPMIMGGDE AHMVEERPFH
     SLSVMDESHM ASEWTREKTV SSETARRAAT APAFIPPGEA FRSARRAPAF IPPADQG