ID A0A2U8GQ99_9RHOO Unreviewed; 154 AA.
AC A0A2U8GQ99;
DT 12-SEP-2018, integrated into UniProtKB/TrEMBL.
DT 12-SEP-2018, 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 ECO:0000313|EMBL:AWI75638.1};
GN ORFNames=CEW83_10775 {ECO:0000313|EMBL:AWI75638.1};
OS Parazoarcus communis.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Rhodocyclales; Zoogloeaceae;
OC Parazoarcus.
OX NCBI_TaxID=41977 {ECO:0000313|EMBL:AWI75638.1, ECO:0000313|Proteomes:UP000244930};
RN [1] {ECO:0000313|EMBL:AWI75638.1, ECO:0000313|Proteomes:UP000244930}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TSPY31 {ECO:0000313|EMBL:AWI75638.1,
RC ECO:0000313|Proteomes:UP000244930};
RA Woo J.-H., Kim H.-S.;
RT "Azoarcus.";
RL Submitted (JUN-2017) 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}.
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DR EMBL; CP022187; AWI75638.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2U8GQ99; -.
DR KEGG; acom:CEW83_10775; -.
DR Proteomes; UP000244930; Chromosome.
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 inner membrane {ECO:0000256|ARBA:ARBA00022519};
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475, ECO:0000256|HAMAP-
KW Rule:MF_00237}; Coiled coil {ECO:0000256|SAM:Coils};
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:UP000244930};
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 97..154
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COILED 52..79
FT /evidence="ECO:0000256|SAM:Coils"
SQ SEQUENCE 154 AA; 16431 MW; EB66A7DB4F47551F CRC64;
MFDFGFSELV VIGVVMLIVV GPERLPKVAR TAGHLLGRLQ RYVSDVKSDI QREMQLEELK
KLQEQVKEQA HEMEASVREQ VSSLESGLGK TVDEVKAALP GEEPVSGGAA TTGAQQQAAP
VEQAAVADGS AESTSQLELG LDPAVRQPLP VDKA
//