ID L9YCR3_9EURY Unreviewed; 327 AA.
AC L9YCR3;
DT 03-APR-2013, integrated into UniProtKB/TrEMBL.
DT 03-APR-2013, sequence version 1.
DT 24-JAN-2024, entry version 48.
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=C489_00571 {ECO:0000313|EMBL:ELY71416.1};
OS Natrinema versiforme JCM 10478.
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Natrialbales;
OC Natrialbaceae; Natrinema.
OX NCBI_TaxID=1227496 {ECO:0000313|EMBL:ELY71416.1, ECO:0000313|Proteomes:UP000011632};
RN [1] {ECO:0000313|EMBL:ELY71416.1, ECO:0000313|Proteomes:UP000011632}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JCM 10478 {ECO:0000313|EMBL:ELY71416.1,
RC ECO:0000313|Proteomes:UP000011632};
RX PubMed=25393412; DOI=10.1371/journal.pgen.1004784;
RA Becker E.A., Seitzer P.M., Tritt A., Larsen D., Krusor M., Yao A.I., Wu D.,
RA Madern D., Eisen J.A., Darling A.E., Facciotti M.T.;
RT "Phylogenetically driven sequencing of extremely halophilic archaea reveals
RT strategies for static and dynamic osmo-response.";
RL PLoS Genet. 10:E1004784-E1004784(2014).
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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:ELY71416.1}.
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DR EMBL; AOID01000003; ELY71416.1; -; Genomic_DNA.
DR RefSeq; WP_006429130.1; NZ_AOID01000003.1.
DR AlphaFoldDB; L9YCR3; -.
DR STRING; 1227496.C489_00571; -.
DR GeneID; 40266773; -.
DR PATRIC; fig|1227496.3.peg.118; -.
DR OrthoDB; 7429at2157; -.
DR Proteomes; UP000011632; Unassembled WGS sequence.
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 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; 1.
DR PROSITE; PS51134; ZF_TFIIB; 1.
PE 3: Inferred from homology;
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00383};
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 28..58
FT /note="TFIIB-type"
FT /evidence="ECO:0000259|PROSITE:PS51134"
FT REPEAT 144..227
FT /note="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT REPEAT 238..319
FT /note="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT REGION 1..31
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 76..96
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 81..96
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 32
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 35
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 50
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 53
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
SQ SEQUENCE 327 AA; 36290 MW; 7FE90AFEC251D334 CRC64;
MTNAPSNTRV RRSEPETNEQ ETESEEQQDL VCPECAGNLV VDDEHGETVC EDCGLVVEED
SVDRGPEWRA FDAAEKNEKS RVGAPTTNTM HDKGLSTNID WRNKDAYGNS LGSRQREKMQ
RLRKWNERFR TRDSKERNLK QALGEIDRMA SALGLPTNVR ETASVIYRRA LDEDLLPGRS
IEGVSTACVY AAARQAGVPR SLDEIADVSR VEKNEIARTY RYVVRELGLE VQPADPESYV
PRFASGLELS DEAEHRARSL LQNAKEKGVH SGKSPVGLAA AAVYAAALLT NEKTTQAAVS
DVADISEVTI RNRYHELLEA EETIGMA
//
