ID A0A0X3TAE1_9GAMM Unreviewed; 169 AA.
AC A0A0X3TAE1;
DT 13-APR-2016, integrated into UniProtKB/TrEMBL.
DT 13-APR-2016, sequence version 1.
DT 24-JAN-2024, entry version 25.
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=AVO41_02165 {ECO:0000313|EMBL:KUJ72629.1};
OS Thiomicrospira sp. WB1.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Thiotrichales;
OC Piscirickettsiaceae; Thiomicrospira.
OX NCBI_TaxID=1685380 {ECO:0000313|EMBL:KUJ72629.1, ECO:0000313|Proteomes:UP000053531};
RN [1] {ECO:0000313|EMBL:KUJ72629.1, ECO:0000313|Proteomes:UP000053531}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=WB1 {ECO:0000313|EMBL:KUJ72629.1,
RC ECO:0000313|Proteomes:UP000053531};
RA Shamseldin A., Moawad H., Abd El-Rahim W.M., Sadowsky M.J.;
RL Submitted (DEC-2015) 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 Membrane {ECO:0000256|ARBA:ARBA00004167}; Single-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00004167}.
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:KUJ72629.1}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; LQBN01000001; KUJ72629.1; -; Genomic_DNA.
DR RefSeq; WP_068581894.1; NZ_LQBN01000001.1.
DR AlphaFoldDB; A0A0X3TAE1; -.
DR STRING; 1685380.AVO41_02165; -.
DR OrthoDB; 9816005at2; -.
DR Proteomes; UP000053531; 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 PANTHER; PTHR33162; SEC-INDEPENDENT PROTEIN TRANSLOCASE PROTEIN TATA, CHLOROPLASTIC; 1.
DR PANTHER; PTHR33162:SF1; SEC-INDEPENDENT PROTEIN TRANSLOCASE PROTEIN TATA, CHLOROPLASTIC; 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:UP000053531};
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 83..169
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 83..100
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 124..160
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 169 AA; 18855 MW; F33790621FECF7E2 CRC64;
MFDIGMLEIM VILVIALLVI GPERMPEVAR KIGQFVGKTK RFVHSVRESS ELNDTVREIQ
TSMNLDQERK ELEDISRSMH KDFSDFEKDL GEHEQITRPF GDIEEVTPSQ FNRAPAQPKP
PQAEEPAESQ SSQAGAPASE QTTDSGSQPT QTASSERAQT ETETKQAHS
//
