ID   TATB_SACEN              Reviewed;         131 AA.
AC   A4F8J0;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   17-APR-2007, sequence version 1.
DT   25-MAY-2022, entry version 77.
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=SACE_1033;
OS   Saccharopolyspora erythraea (strain ATCC 11635 / DSM 40517 / JCM 4748 /
OS   NBRC 13426 / NCIMB 8594 / NRRL 2338).
OC   Bacteria; Actinobacteria; Pseudonocardiales; Pseudonocardiaceae;
OC   Saccharopolyspora.
OX   NCBI_TaxID=405948;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 11635 / DSM 40517 / JCM 4748 / NBRC 13426 / NCIMB 8594 / NRRL
RC   2338;
RX   PubMed=17369815; DOI=10.1038/nbt1297;
RA   Oliynyk M., Samborskyy M., Lester J.B., Mironenko T., Scott N., Dickens S.,
RA   Haydock S.F., Leadlay P.F.;
RT   "Complete genome sequence of the erythromycin-producing bacterium
RT   Saccharopolyspora erythraea NRRL23338.";
RL   Nat. Biotechnol. 25:447-453(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 membrane {ECO:0000255|HAMAP-Rule:MF_00237};
CC       Single-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_00237}.
CC   -!- SIMILARITY: Belongs to the TatB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00237}.
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DR   EMBL; AM420293; CAM00365.1; -; Genomic_DNA.
DR   RefSeq; WP_009949788.1; NZ_PDBV01000001.1.
DR   AlphaFoldDB; A4F8J0; -.
DR   SMR; A4F8J0; -.
DR   STRING; 405948.SACE_1033; -.
DR   EnsemblBacteria; CAM00365; CAM00365; SACE_1033.
DR   KEGG; sen:SACE_1033; -.
DR   eggNOG; COG1826; Bacteria.
DR   HOGENOM; CLU_086034_2_0_11; -.
DR   OMA; PRAVITK; -.
DR   OrthoDB; 2073616at2; -.
DR   Proteomes; UP000006728; 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 membrane; Membrane; Protein transport; Reference proteome;
KW   Translocation; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..131
FT                   /note="Sec-independent protein translocase protein TatB"
FT                   /id="PRO_0000301230"
FT   TRANSMEM        2..22
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT   REGION          80..131
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        94..110
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   131 AA;  14408 MW;  14E44DF2B23CBE30 CRC64;
     MFENIGWAEL LVLIVAGLFI LGPERLPQGA AWLGRTVRQV KEYATGARDQ LRSELGPEFD
     ELRKPLEDLR GIRNFDPKRA MTNHLFDGEN PLDGVTRNGS TPSSPSASAP RPADQRPLAP
     GEKPPYDSDA T