ID   TATB_SALTY              Reviewed;         182 AA.
AC   P57048;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2002, sequence version 2.
DT   03-AUG-2022, entry version 108.
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=STM3974;
GN   ORFNames=STMD1.15;
OS   Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=99287;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LT2 / SGSC1412 / ATCC 700720;
RX   PubMed=11677609; DOI=10.1038/35101614;
RA   McClelland M., Sanderson K.E., Spieth J., Clifton S.W., Latreille P.,
RA   Courtney L., Porwollik S., Ali J., Dante M., Du F., Hou S., Layman D.,
RA   Leonard S., Nguyen C., Scott K., Holmes A., Grewal N., Mulvaney E.,
RA   Ryan E., Sun H., Florea L., Miller W., Stoneking T., Nhan M., Waterston R.,
RA   Wilson R.K.;
RT   "Complete genome sequence of Salmonella enterica serovar Typhimurium LT2.";
RL   Nature 413:852-856(2001).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAF33490.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AF233324; AAF33490.1; ALT_INIT; Genomic_DNA.
DR   EMBL; AE006468; AAL22818.1; -; Genomic_DNA.
DR   RefSeq; NP_462859.1; NC_003197.2.
DR   RefSeq; WP_000459612.1; NC_003197.2.
DR   AlphaFoldDB; P57048; -.
DR   SMR; P57048; -.
DR   STRING; 99287.STM3974; -.
DR   PaxDb; P57048; -.
DR   DNASU; 1255500; -.
DR   EnsemblBacteria; AAL22818; AAL22818; STM3974.
DR   GeneID; 1255500; -.
DR   KEGG; stm:STM3974; -.
DR   PATRIC; fig|99287.12.peg.4193; -.
DR   HOGENOM; CLU_086034_1_0_6; -.
DR   OMA; GQFQEAM; -.
DR   PhylomeDB; P57048; -.
DR   BioCyc; SENT99287:STM3974-MON; -.
DR   Proteomes; UP000001014; 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..182
FT                   /note="Sec-independent protein translocase protein TatB"
FT                   /id="PRO_0000192669"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT   REGION          87..107
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          121..182
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   182 AA;  19601 MW;  824FF73961F50940 CRC64;
     MFDIGFSELL LVFVIGLIVL GPQRLPVAVK TVAGWIRALR SLATTVQNEL TQELKLQEFQ
     DSLKKVEKAS LENLTPELKA SMDELRQAAE SMKRTYSAND PEQASDEAHT IHNPVVKGNE
     TQHEGVTPAA AETQASAPEQ KPEPVKANVP ESTETASVAT IDAEKKSAAP VVESSPSSSD
     KP