ID   TATB_AROAE              Reviewed;         147 AA.
AC   Q5P7A0;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   04-JAN-2005, sequence version 1.
DT   25-MAY-2022, entry version 89.
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=AZOSEA06880;
GN   ORFNames=ebD2;
OS   Aromatoleum aromaticum (strain EbN1) (Azoarcus sp. (strain EbN1)).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Rhodocyclales;
OC   Rhodocyclaceae; Aromatoleum.
OX   NCBI_TaxID=76114;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=EbN1;
RX   PubMed=15551059; DOI=10.1007/s00203-004-0742-9;
RA   Rabus R., Kube M., Heider J., Beck A., Heitmann K., Widdel F.,
RA   Reinhardt R.;
RT   "The genome sequence of an anaerobic aromatic-degrading denitrifying
RT   bacterium, strain EbN1.";
RL   Arch. Microbiol. 183:27-36(2005).
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; CR555306; CAI06811.1; -; Genomic_DNA.
DR   RefSeq; WP_011236539.1; NC_006513.1.
DR   AlphaFoldDB; Q5P7A0; -.
DR   SMR; Q5P7A0; -.
DR   STRING; 76114.ebD2; -.
DR   EnsemblBacteria; CAI06811; CAI06811; ebD2.
DR   KEGG; eba:ebD2; -.
DR   eggNOG; COG1826; Bacteria.
DR   HOGENOM; CLU_086034_1_1_4; -.
DR   OMA; GQFQEAM; -.
DR   OrthoDB; 2073616at2; -.
DR   Proteomes; UP000006552; 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..147
FT                   /note="Sec-independent protein translocase protein TatB"
FT                   /id="PRO_0000301142"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT   REGION          117..147
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   147 AA;  15515 MW;  EC8872143BBC0025 CRC64;
     MFDFGFSELI VIAVVTLIVV GPERLPKVAR TAGHLLGRLQ RYVSDVKSDI KREMQLEELK
     ALQQQVEQQA RELESSMRGE AAKIEADVNK TVAEVKSGVT VDAAPVPLTH AVEAPAAPAP
     MSLAPHGDAA SAGREPAAVP GSGPEKA