ID E4NMB8_HALBP Unreviewed; 317 AA.
AC E4NMB8;
DT 08-FEB-2011, integrated into UniProtKB/TrEMBL.
DT 08-FEB-2011, sequence version 1.
DT 27-MAR-2024, entry version 74.
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 OrderedLocusNames=Hbor_17550 {ECO:0000313|EMBL:ADQ67323.1};
OS Halogeometricum borinquense (strain ATCC 700274 / DSM 11551 / JCM 10706 /
OS KCTC 4070 / PR3).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Haloferacales;
OC Haloferacaceae; Halogeometricum.
OX NCBI_TaxID=469382 {ECO:0000313|EMBL:ADQ67323.1, ECO:0000313|Proteomes:UP000006663};
RN [1] {ECO:0000313|EMBL:ADQ67323.1, ECO:0000313|Proteomes:UP000006663}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700274 / DSM 11551 / JCM 10706 / KCTC 4070 / PR3
RC {ECO:0000313|Proteomes:UP000006663};
RX PubMed=21304651; DOI=10.4056/sigs.23264;
RA Malfatti S., Tindall B.J., Schneider S., Fahnrich R., Lapidus A.,
RA Labuttii K., Copeland A., Glavina Del Rio T., Nolan M., Chen F., Lucas S.,
RA Tice H., Cheng J.F., Bruce D., Goodwin L., Pitluck S., Anderson I.,
RA Pati A., Ivanova N., Mavromatis K., Chen A., Palaniappan K.,
RA D'haeseleer P., Goker M., Bristow J., Eisen J.A., Markowitz V.,
RA Hugenholtz P., Kyrpides N.C., Klenk H.P., Chain P.;
RT "Complete genome sequence of Halogeometricum borinquense type strain
RT (PR3).";
RL Stand. Genomic Sci. 1:150-159(2009).
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; CP001690; ADQ67323.1; -; Genomic_DNA.
DR RefSeq; WP_013440590.1; NZ_AOHT01000024.1.
DR AlphaFoldDB; E4NMB8; -.
DR SMR; E4NMB8; -.
DR STRING; 469382.Hbor_17550; -.
DR GeneID; 9993574; -.
DR KEGG; hbo:Hbor_17550; -.
DR eggNOG; arCOG01981; Archaea.
DR HOGENOM; CLU_043736_0_0_2; -.
DR OrthoDB; 7429at2157; -.
DR Proteomes; UP000006663; 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: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 Metal-binding {ECO:0000256|HAMAP-Rule:MF_00383};
KW Reference proteome {ECO:0000313|Proteomes:UP000006663};
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 20..51
FT /note="TFIIB-type"
FT /evidence="ECO:0000259|PROSITE:PS51134"
FT REPEAT 137..220
FT /note="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT REPEAT 231..312
FT /note="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT REGION 1..20
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 24
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 27
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 43
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 46
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
SQ SEQUENCE 317 AA; 35788 MW; 3F83094ACFD8644A CRC64;
MERPSRQRQR EQEVEQDSDE RIACPECEST NIITDADQGE LVCDDCGLVL DERQIDRGPE
WRAFNHSERQ SKSRVGAPIT ETMHDRGLTT TIDWKDKDAY GRSLSSEKRS QMHRLRKWQE
RIRTKDAGER NLQFALSEID RMASALGVPR SVREVASVIY RRALNEDLIR GRSIEGVATS
ALYAACRQEG IPRSLDEVAE VSRVPQKEIG RTYRYISQEL GLELKPVDPK QFVPRFASAL
GLSEEVQAKA TEIIDVSAEQ GLLSGKSPTG FAAAAIYAAS LLCNEKKTQR EVADVAQVTE
VTIRNRYQEQ IEAMGFR
//
