ID   TATB_CHRSD              Reviewed;         139 AA.
AC   Q1R004;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   16-MAY-2006, sequence version 1.
DT   25-MAY-2022, entry version 99.
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=Csal_0592;
OS   Chromohalobacter salexigens (strain ATCC BAA-138 / DSM 3043 / CIP 106854 /
OS   NCIMB 13768 / 1H11).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Oceanospirillales;
OC   Halomonadaceae; Chromohalobacter.
OX   NCBI_TaxID=290398;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-138 / DSM 3043 / CIP 106854 / NCIMB 13768 / 1H11;
RX   PubMed=22675587; DOI=10.4056/sigs.2285059;
RA   Copeland A., O'Connor K., Lucas S., Lapidus A., Berry K.W., Detter J.C.,
RA   Del Rio T.G., Hammon N., Dalin E., Tice H., Pitluck S., Bruce D.,
RA   Goodwin L., Han C., Tapia R., Saunders E., Schmutz J., Brettin T.,
RA   Larimer F., Land M., Hauser L., Vargas C., Nieto J.J., Kyrpides N.C.,
RA   Ivanova N., Goker M., Klenk H.P., Csonka L.N., Woyke T.;
RT   "Complete genome sequence of the halophilic and highly halotolerant
RT   Chromohalobacter salexigens type strain (1H11(T)).";
RL   Stand. Genomic Sci. 5:379-388(2011).
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; CP000285; ABE57954.1; -; Genomic_DNA.
DR   RefSeq; WP_011505900.1; NC_007963.1.
DR   AlphaFoldDB; Q1R004; -.
DR   SMR; Q1R004; -.
DR   STRING; 290398.Csal_0592; -.
DR   EnsemblBacteria; ABE57954; ABE57954; Csal_0592.
DR   KEGG; csa:Csal_0592; -.
DR   eggNOG; COG1826; Bacteria.
DR   HOGENOM; CLU_086034_1_1_6; -.
DR   OMA; SLEYKKY; -.
DR   OrthoDB; 2073616at2; -.
DR   Proteomes; UP000000239; 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..139
FT                   /note="Sec-independent protein translocase protein TatB"
FT                   /id="PRO_0000301161"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT   REGION          66..139
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        66..87
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        93..120
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   139 AA;  14881 MW;  BB677013963F8678 CRC64;
     MFDMGFLELM LIGVVALLVL GPERLPTAAR TVGLWVGKIK RTVSGMQREI SAQLEAEELR
     QKLNEQQRKL DAGLGKVRDE VERHGDAPSS RGGQPPPSRT TPTAARSADD TDETPPSTAA
     SRETPEPPAA PSAKDSNAP