ID A0A1Q8CML3_9PSEU Unreviewed; 140 AA.
AC A0A1Q8CML3;
DT 12-APR-2017, integrated into UniProtKB/TrEMBL.
DT 12-APR-2017, sequence version 1.
DT 24-JAN-2024, entry version 21.
DE RecName: Full=Sec-independent protein translocase protein TatB {ECO:0000256|HAMAP-Rule:MF_00237};
GN Name=tatB {ECO:0000256|HAMAP-Rule:MF_00237};
GN ORFNames=BU204_21025 {ECO:0000313|EMBL:OLF15600.1};
OS Actinophytocola xanthii.
OC Bacteria; Actinomycetota; Actinomycetes; Pseudonocardiales;
OC Pseudonocardiaceae.
OX NCBI_TaxID=1912961 {ECO:0000313|EMBL:OLF15600.1, ECO:0000313|Proteomes:UP000185596};
RN [1] {ECO:0000313|EMBL:OLF15600.1, ECO:0000313|Proteomes:UP000185596}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=11-183 {ECO:0000313|EMBL:OLF15600.1,
RC ECO:0000313|Proteomes:UP000185596};
RA Wang W., Yuan L.;
RT "The draft genome sequence of Actinophytocola sp. 11-183.";
RL Submitted (DEC-2016) to the EMBL/GenBank/DDBJ databases.
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:0000256|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:0000256|HAMAP-Rule:MF_00237}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|HAMAP-Rule:MF_00237};
CC Single-pass membrane protein {ECO:0000256|HAMAP-Rule:MF_00237}.
CC -!- SIMILARITY: Belongs to the TatB family. {ECO:0000256|HAMAP-
CC Rule:MF_00237}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OLF15600.1}.
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DR EMBL; MSIE01000039; OLF15600.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1Q8CML3; -.
DR STRING; 1912961.BU204_21025; -.
DR OrthoDB; 3267321at2; -.
DR Proteomes; UP000185596; Unassembled WGS sequence.
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 Gene3D; 1.20.5.3310; -; 1.
DR HAMAP; MF_00237; TatB; 1.
DR InterPro; IPR003369; TatA/B/E.
DR InterPro; IPR018448; TatB.
DR NCBIfam; TIGR01410; tatB; 1.
DR Pfam; PF02416; TatA_B_E; 1.
DR PRINTS; PR01506; TATBPROTEIN.
PE 3: Inferred from homology;
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475, ECO:0000256|HAMAP-
KW Rule:MF_00237};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_00237};
KW Protein transport {ECO:0000256|ARBA:ARBA00022927, ECO:0000256|HAMAP-
KW Rule:MF_00237}; Reference proteome {ECO:0000313|Proteomes:UP000185596};
KW Translocation {ECO:0000256|ARBA:ARBA00023010, ECO:0000256|HAMAP-
KW Rule:MF_00237};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|HAMAP-
KW Rule:MF_00237};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|HAMAP-
KW Rule:MF_00237};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|HAMAP-Rule:MF_00237}.
FT TRANSMEM 6..22
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT REGION 84..140
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 99..131
FT /note="Pro residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 140 AA; 15481 MW; BC6E722585BFFF7C CRC64;
MFDSIGWAEI LIIIVAGLFI LGPERLPSAA AWLGRNVRKV REYATGAREQ LRNEMGDDFD
ELRKPLEDLQ QLRNFDPRRA VTRHLFDDVD VSNGHTKPNG YTPPPPAQET PAAREPAKPT
PAEPPAASAD KPSPFDPDAT
//
