ID   TATB_ACTP2              Reviewed;         195 AA.
AC   A3N3S4;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   03-APR-2007, sequence version 1.
DT   03-AUG-2022, entry version 87.
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=APL_1986;
OS   Actinobacillus pleuropneumoniae serotype 5b (strain L20).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Actinobacillus.
OX   NCBI_TaxID=416269;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=L20;
RX   PubMed=18065534; DOI=10.1128/jb.01845-07;
RA   Foote S.J., Bosse J.T., Bouevitch A.B., Langford P.R., Young N.M.,
RA   Nash J.H.E.;
RT   "The complete genome sequence of Actinobacillus pleuropneumoniae L20
RT   (serotype 5b).";
RL   J. Bacteriol. 190:1495-1496(2008).
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; CP000569; ABN75060.1; -; Genomic_DNA.
DR   RefSeq; WP_005613515.1; NC_009053.1.
DR   AlphaFoldDB; A3N3S4; -.
DR   SMR; A3N3S4; -.
DR   STRING; 416269.APL_1986; -.
DR   EnsemblBacteria; ABN75060; ABN75060; APL_1986.
DR   KEGG; apl:APL_1986; -.
DR   eggNOG; COG1826; Bacteria.
DR   HOGENOM; CLU_086034_1_0_6; -.
DR   OMA; DLMQDYQ; -.
DR   Proteomes; UP000001432; 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; IPR018448; TatB.
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..195
FT                   /note="Sec-independent protein translocase protein TatB"
FT                   /id="PRO_0000301136"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT   REGION          166..195
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   195 AA;  21482 MW;  BD60BC0F10B4B07B CRC64;
     MFDIGFSELV LIFIVGLVVL GPQRLPIAIK TVMGWIRTIR GLAANVQNEL AQELKLQELQ
     ESIKKAEKLN LTTLSPELSK TVEELKQSAQ KMQSDLDAAK GEITKLTDEQ VANIQNNIAQ
     EEQNLATVQP ETLQKSEENQ PLVDTANAEE NPSLSPAEIA EQAELDESQF AAYYPPDDDL
     ASPTPSQPQD KQNVS