ID   TATB_NEIMA              Reviewed;         228 AA.
AC   Q9JVK1; A1IQL7;
DT   27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 105.
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=NMA0804;
OS   Neisseria meningitidis serogroup A / serotype 4A (strain DSM 15465 /
OS   Z2491).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Neisseriales; Neisseriaceae;
OC   Neisseria.
OX   NCBI_TaxID=122587;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 15465 / Z2491;
RX   PubMed=10761919; DOI=10.1038/35006655;
RA   Parkhill J., Achtman M., James K.D., Bentley S.D., Churcher C.M.,
RA   Klee S.R., Morelli G., Basham D., Brown D., Chillingworth T., Davies R.M.,
RA   Davis P., Devlin K., Feltwell T., Hamlin N., Holroyd S., Jagels K.,
RA   Leather S., Moule S., Mungall K.L., Quail M.A., Rajandream M.A.,
RA   Rutherford K.M., Simmonds M., Skelton J., Whitehead S., Spratt B.G.,
RA   Barrell B.G.;
RT   "Complete DNA sequence of a serogroup A strain of Neisseria meningitidis
RT   Z2491.";
RL   Nature 404:502-506(2000).
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; AL157959; CAM08049.1; -; Genomic_DNA.
DR   PIR; D81925; D81925.
DR   RefSeq; WP_002236783.1; NC_003116.1.
DR   AlphaFoldDB; Q9JVK1; -.
DR   SMR; Q9JVK1; -.
DR   DNASU; 906794; -.
DR   EnsemblBacteria; CAM08049; CAM08049; NMA0804.
DR   KEGG; nma:NMA0804; -.
DR   HOGENOM; CLU_086034_1_1_4; -.
DR   OMA; MFEVGWT; -.
DR   BioCyc; NMEN122587:NMA_RS04050-MON; -.
DR   Proteomes; UP000000626; 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   Translocation; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..228
FT                   /note="Sec-independent protein translocase protein TatB"
FT                   /id="PRO_0000192662"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT   REGION          138..162
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          195..228
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        142..159
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        209..228
FT                   /note="Basic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   228 AA;  25036 MW;  EBE4DCADC4136762 CRC64;
     MFDFGLGELV FVGIIALIVL GPERLPEAAR TAGRLIGRLQ RFVGSVKQEF DTQIELEELR
     KAKQEFEAAA AQVRDSLKET GTDMEGNLHD ISDGLKPWEK LPEQRTPADF GVDENGNPFP
     DAANTLLDGI SDVMPSERSY ASAETLGDSG QTGSTAEPAE TDQDRAWREY LTASAAAPVV
     QTVEVSYIDT AVETPVPHTT SLRKQAISRK RDLRPKSRAK PKLRVRKS