TATB_SHIF8
ID TATB_SHIF8 Reviewed; 171 AA.
AC Q0SZ29;
DT 11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT 05-SEP-2006, sequence version 1.
DT 03-AUG-2022, entry version 81.
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=SFV_3661;
OS Shigella flexneri serotype 5b (strain 8401).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Shigella.
OX NCBI_TaxID=373384;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=8401;
RX PubMed=16822325; DOI=10.1186/1471-2164-7-173;
RA Nie H., Yang F., Zhang X., Yang J., Chen L., Wang J., Xiong Z., Peng J.,
RA Sun L., Dong J., Xue Y., Xu X., Chen S., Yao Z., Shen Y., Jin Q.;
RT "Complete genome sequence of Shigella flexneri 5b and comparison with
RT Shigella flexneri 2a.";
RL BMC Genomics 7:173-173(2006).
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; CP000266; ABF05686.1; -; Genomic_DNA.
DR RefSeq; WP_000459594.1; NC_008258.1.
DR AlphaFoldDB; Q0SZ29; -.
DR SMR; Q0SZ29; -.
DR EnsemblBacteria; ABF05686; ABF05686; SFV_3661.
DR GeneID; 66672255; -.
DR KEGG; sfv:SFV_3661; -.
DR HOGENOM; CLU_086034_1_0_6; -.
DR OMA; GQFQEAM; -.
DR BioCyc; SFLE373384:SFV_RS20200-MON; -.
DR Proteomes; UP000000659; 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 Translocation; Transmembrane; Transmembrane helix; Transport.
FT CHAIN 1..171
FT /note="Sec-independent protein translocase protein TatB"
FT /id="PRO_0000301240"
FT TRANSMEM 1..21
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT REGION 117..171
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 129..143
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 171 AA; 18421 MW; 31F1405404F5DABF CRC64;
MFDIGFSELL LVFIIGLVVL GPQRLPVAVK TVAGWIRALR SLATTVQNEL TQELKLQEFQ
DSLKKVEKAS LTNLTPELKA SMDELRQAAE SMKRSYVAND PEKASDEAHT IHNPVVKDNE
AAHEGVTPAA AQTQASSPEQ KPETTPEPVV KPAADAEPKT AAPSPSSSDK P
