TATB_METPP
ID TATB_METPP Reviewed; 170 AA.
AC A2SE15;
DT 11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT 06-MAR-2007, sequence version 1.
DT 25-MAY-2022, entry version 78.
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=Mpe_A0842;
OS Methylibium petroleiphilum (strain ATCC BAA-1232 / LMG 22953 / PM1).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales; Methylibium.
OX NCBI_TaxID=420662;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1232 / LMG 22953 / PM1;
RX PubMed=17158667; DOI=10.1128/jb.01259-06;
RA Kane S.R., Chakicherla A.Y., Chain P.S.G., Schmidt R., Shin M.W.,
RA Legler T.C., Scow K.M., Larimer F.W., Lucas S.M., Richardson P.M.,
RA Hristova K.R.;
RT "Whole-genome analysis of the methyl tert-butyl ether-degrading beta-
RT proteobacterium Methylibium petroleiphilum PM1.";
RL J. Bacteriol. 189:1931-1945(2007).
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; CP000555; ABM93804.1; -; Genomic_DNA.
DR RefSeq; WP_011828442.1; NC_008825.1.
DR AlphaFoldDB; A2SE15; -.
DR SMR; A2SE15; -.
DR STRING; 420662.Mpe_A0842; -.
DR EnsemblBacteria; ABM93804; ABM93804; Mpe_A0842.
DR KEGG; mpt:Mpe_A0842; -.
DR eggNOG; COG1826; Bacteria.
DR HOGENOM; CLU_086034_1_1_4; -.
DR OMA; ARPLWFK; -.
DR OrthoDB; 2073616at2; -.
DR Proteomes; UP000000366; 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; IPR003369; TatA/B/E.
DR InterPro; IPR018448; TatB.
DR Pfam; PF02416; TatA_B_E; 1.
DR TIGRFAMs; TIGR01410; tatB; 1.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; Membrane; Protein transport;
KW Reference proteome; Translocation; Transmembrane; Transmembrane helix;
KW Transport.
FT CHAIN 1..170
FT /note="Sec-independent protein translocase protein TatB"
FT /id="PRO_0000301184"
FT TRANSMEM 1..21
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT REGION 69..170
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 71..108
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 170 AA; 18684 MW; 67A31BE7A83FE47A CRC64;
MIDFGFDKIA LIGAVALIVI GPERLPKVAR TVGHLMGKAQ RYVADVKAEV NRSIELEELK
KMKTDFEDAA RNVEQSVSSE VNRTSSEMNQ AWESLSSSDG NGGSSGSAAA DSYHAGEPLS
EPPPAYTHPR KNWRLKRGAM PQWYKQRHGV RAKAQSGAAR VARFRPPRPL
