ID W8P3A7_9EURY Unreviewed; 295 AA.
AC W8P3A7;
DT 14-MAY-2014, integrated into UniProtKB/TrEMBL.
DT 14-MAY-2014, sequence version 1.
DT 24-JAN-2024, entry version 40.
DE RecName: Full=Transcription initiation factor IIB {ECO:0000256|ARBA:ARBA00013932, ECO:0000256|HAMAP-Rule:MF_00383};
DE Short=TFIIB {ECO:0000256|HAMAP-Rule:MF_00383};
GN Name=tfb {ECO:0000256|HAMAP-Rule:MF_00383};
GN ORFNames=BD01_1637 {ECO:0000313|EMBL:AHL23241.1};
OS Thermococcus nautili.
OC Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae;
OC Thermococcus.
OX NCBI_TaxID=195522 {ECO:0000313|EMBL:AHL23241.1, ECO:0000313|Proteomes:UP000019434};
RN [1] {ECO:0000313|EMBL:AHL23241.1, ECO:0000313|Proteomes:UP000019434}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=30-1 {ECO:0000313|EMBL:AHL23241.1,
RC ECO:0000313|Proteomes:UP000019434};
RA Oberto J., Gaudin M., Cossu M., Gorlas A., Slesarev A., Marguet E.,
RA Forterre P.;
RT "Genome Sequence of an Hyperthermophilic Archaeon, Thermococcus nautili 30-
RT 1, producing viral vesicles.";
RL Submitted (FEB-2014) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Stabilizes TBP binding to an archaeal box-A promoter. Also
CC responsible for recruiting RNA polymerase II to the pre-initiation
CC complex (DNA-TBP-TFIIB). {ECO:0000256|HAMAP-Rule:MF_00383}.
CC -!- SIMILARITY: Belongs to the TFIIB family.
CC {ECO:0000256|ARBA:ARBA00010857, ECO:0000256|HAMAP-Rule:MF_00383}.
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DR EMBL; CP007264; AHL23241.1; -; Genomic_DNA.
DR AlphaFoldDB; W8P3A7; -.
DR STRING; 195522.BD01_1637; -.
DR KEGG; tnu:BD01_1637; -.
DR eggNOG; arCOG01981; Archaea.
DR HOGENOM; CLU_043736_0_0_2; -.
DR Proteomes; UP000019434; Chromosome.
DR GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:UniProtKB-UniRule.
DR GO; GO:0017025; F:TBP-class protein binding; IEA:InterPro.
DR GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-KW.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0070897; P:transcription preinitiation complex assembly; IEA:InterPro.
DR CDD; cd20549; CYCLIN_TFIIB_archaea_like_rpt1; 1.
DR CDD; cd20550; CYCLIN_TFIIB_archaea_like_rpt2; 1.
DR Gene3D; 1.10.472.170; -; 1.
DR Gene3D; 1.10.472.10; Cyclin-like; 1.
DR HAMAP; MF_00383; TF2B_arch; 1.
DR InterPro; IPR013763; Cyclin-like_dom.
DR InterPro; IPR036915; Cyclin-like_sf.
DR InterPro; IPR000812; TFIIB.
DR InterPro; IPR023484; TFIIB_arc.
DR InterPro; IPR023486; TFIIB_CS.
DR InterPro; IPR013150; TFIIB_cyclin.
DR InterPro; IPR013137; Znf_TFIIB.
DR PANTHER; PTHR11618:SF13; TRANSCRIPTION INITIATION FACTOR IIB; 1.
DR PANTHER; PTHR11618; TRANSCRIPTION INITIATION FACTOR IIB-RELATED; 1.
DR Pfam; PF08271; TF_Zn_Ribbon; 1.
DR Pfam; PF00382; TFIIB; 2.
DR PRINTS; PR00685; TIFACTORIIB.
DR SMART; SM00385; CYCLIN; 2.
DR SUPFAM; SSF47954; Cyclin-like; 2.
DR SUPFAM; SSF57783; Zinc beta-ribbon; 1.
DR PROSITE; PS00782; TFIIB; 2.
DR PROSITE; PS51134; ZF_TFIIB; 1.
PE 3: Inferred from homology;
KW Initiation factor {ECO:0000313|EMBL:AHL23241.1};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00383};
KW Protein biosynthesis {ECO:0000313|EMBL:AHL23241.1};
KW Repeat {ECO:0000256|ARBA:ARBA00022737, ECO:0000256|HAMAP-Rule:MF_00383};
KW Transcription {ECO:0000256|ARBA:ARBA00023163, ECO:0000256|HAMAP-
KW Rule:MF_00383};
KW Transcription regulation {ECO:0000256|ARBA:ARBA00023015, ECO:0000256|HAMAP-
KW Rule:MF_00383}; Zinc {ECO:0000256|HAMAP-Rule:MF_00383};
KW Zinc-finger {ECO:0000256|ARBA:ARBA00022771, ECO:0000256|PROSITE-
KW ProRule:PRU00469}.
FT DOMAIN 1..26
FT /note="TFIIB-type"
FT /evidence="ECO:0000259|PROSITE:PS51134"
FT REPEAT 112..195
FT /note="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT REPEAT 206..287
FT /note="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 2
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 18
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 21
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
SQ SEQUENCE 295 AA; 33418 MW; AC44090886737326 CRC64;
MCGSTEFIYD PRRGEIVCKV CGYVIEENVV DEGPEWRAFD PDQRAKRART GAPMTLMIHD
KGLSTDIDWR DKDIHGNQIT GMYRSKMRRL RMWQRRMRIN DAAERNLAFA LSELDRMAAQ
MRLPRRVKEV AASLYRKAVM KKLIRGRSIE GMVSAALYAA CRMEGIPRTL DEIAAVSKVT
KKEIGRSYRF LARGLNLNLR PTSPIEYVDR FGDALGVSSR TKERAKEILR EAIKRGITSG
KGPTGLAAAA LYVASLLEGE KKTQREVAEV AHVTEVTVRN RYKELVEKLG INVPM
//
