ID   TATB_NITMU              Reviewed;         147 AA.
AC   Q2YAV5;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   20-DEC-2005, sequence version 1.
DT   25-MAY-2022, entry version 84.
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=Nmul_A0809;
OS   Nitrosospira multiformis (strain ATCC 25196 / NCIMB 11849 / C 71).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Nitrosomonadales;
OC   Nitrosomonadaceae; Nitrosospira.
OX   NCBI_TaxID=323848;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25196 / NCIMB 11849 / C 71;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Chain P., Malfatti S., Shin M.,
RA   Vergez L., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Lykidis A., Richardson P.;
RT   "Complete sequence of chromosome 1 of Nitrosospira multiformis ATCC
RT   25196.";
RL   Submitted (AUG-2005) 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: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; CP000103; ABB74116.1; -; Genomic_DNA.
DR   RefSeq; WP_011380164.1; NZ_FNVK01000036.1.
DR   AlphaFoldDB; Q2YAV5; -.
DR   SMR; Q2YAV5; -.
DR   STRING; 323848.Nmul_A0809; -.
DR   EnsemblBacteria; ABB74116; ABB74116; Nmul_A0809.
DR   KEGG; nmu:Nmul_A0809; -.
DR   eggNOG; COG1826; Bacteria.
DR   HOGENOM; CLU_086034_1_1_4; -.
DR   OMA; GQFQEAM; -.
DR   OrthoDB; 2073616at2; -.
DR   Proteomes; UP000002718; 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..147
FT                   /note="Sec-independent protein translocase protein TatB"
FT                   /id="PRO_0000301201"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00237"
FT   REGION          67..147
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        67..89
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        114..130
FT                   /note="Pro residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   147 AA;  15841 MW;  0EA74D17B77C125C CRC64;
     MFDISFSEIL VIAAVALIVI GPERLPKVAR TLGHVFGWAQ RYVNDVKSDI QREIELDELK
     KWKASVEETG RSIENSVHTE LDKFRETVEA GAEASAMPPP TTAPAGESSP PQNSSPAPAE
     PAPPPVQSTK NSDPAGPGVN RERETAE