ID A0A1R4GRL9_9GAMM Unreviewed; 219 AA.
AC A0A1R4GRL9;
DT 12-APR-2017, integrated into UniProtKB/TrEMBL.
DT 12-APR-2017, sequence version 1.
DT 24-JAN-2024, entry version 23.
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:SJM70821.1};
GN ORFNames=A1232T_01070 {ECO:0000313|EMBL:SJM70821.1};
OS Psychrobacter piechaudii.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC Psychrobacter.
OX NCBI_TaxID=1945521 {ECO:0000313|EMBL:SJM70821.1, ECO:0000313|Proteomes:UP000188357};
RN [1] {ECO:0000313|EMBL:SJM70821.1, ECO:0000313|Proteomes:UP000188357}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Psychrobacter_piechaudii {ECO:0000313|EMBL:SJM70821.1};
RA Peterson S.W.;
RL Submitted (FEB-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; FUGE01000116; SJM70821.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1R4GRL9; -.
DR STRING; 1945521.A1232T_01070; -.
DR OrthoDB; 9816005at2; -.
DR Proteomes; UP000188357; 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:UP000188357};
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 REGION 89..160
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 89..110
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 122..156
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 219 AA; 24655 MW; 0BA83FCEEBEB47C1 CRC64;
MFNFSFYELM VFGIIALIVL GPEKLPQAVR TVGTYYSKFR RTIGTLKAEM EAELDLAETR
QLMQQELAKI RESEAEMQKE MAQLRGSIQE FEQQQNSQLK QLQSGKPTGN TGEKEWVHPV
ANANPNTDSD TNYAYGSVNS PDSSKADTSV AAQPVEPSAP QMTRPWENMW FLLGDYDRVR
RLPPPPFLPN YTANPLLYNT QVTSTETDTG SAKPTEVRP
//
