ID B9LW48_HALLT Unreviewed; 308 AA.
AC B9LW48;
DT 24-MAR-2009, integrated into UniProtKB/TrEMBL.
DT 24-MAR-2009, sequence version 1.
DT 27-MAR-2024, entry version 86.
DE RecName: Full=Transcription initiation factor IIB {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=Hlac_2880 {ECO:0000313|EMBL:ACM58438.1};
OS Halorubrum lacusprofundi (strain ATCC 49239 / DSM 5036 / JCM 8891 / ACAM
OS 34).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Haloferacales;
OC Halorubraceae; Halorubrum.
OX NCBI_TaxID=416348 {ECO:0000313|EMBL:ACM58438.1, ECO:0000313|Proteomes:UP000000740};
RN [1] {ECO:0000313|EMBL:ACM58438.1, ECO:0000313|Proteomes:UP000000740}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 49239 / DSM 5036 / JCM 8891 / ACAM 34
RC {ECO:0000313|Proteomes:UP000000740};
RX PubMed=27617060; DOI=10.1186/s40793-016-0194-2;
RA Anderson I.J., DasSarma P., Lucas S., Copeland A., Lapidus A.,
RA Del Rio T.G., Tice H., Dalin E., Bruce D.C., Goodwin L., Pitluck S.,
RA Sims D., Brettin T.S., Detter J.C., Han C.S., Larimer F., Hauser L.,
RA Land M., Ivanova N., Richardson P., Cavicchioli R., DasSarma S.,
RA Woese C.R., Kyrpides N.C.;
RT "Complete genome sequence of the Antarctic Halorubrum lacusprofundi type
RT strain ACAM 34.";
RL Stand. Genomic Sci. 11:70-70(2016).
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. {ECO:0000256|HAMAP-
CC Rule:MF_00383}.
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DR EMBL; CP001366; ACM58438.1; -; Genomic_DNA.
DR RefSeq; WP_015911428.1; NC_012028.1.
DR AlphaFoldDB; B9LW48; -.
DR GeneID; 7398874; -.
DR KEGG; hla:Hlac_2880; -.
DR eggNOG; arCOG01981; Archaea.
DR HOGENOM; CLU_043736_0_0_2; -.
DR Proteomes; UP000000740; Chromosome 2.
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 Gene3D; 1.10.472.170; -; 1.
DR Gene3D; 1.10.472.10; Cyclin-like; 1.
DR HAMAP; MF_00383; TF2B_arch; 1.
DR InterPro; IPR036915; Cyclin-like_sf.
DR InterPro; IPR000812; TFIIB.
DR InterPro; IPR023484; TFIIB_arc.
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 SUPFAM; SSF47954; Cyclin-like; 2.
DR SUPFAM; SSF57783; Zinc beta-ribbon; 1.
PE 3: Inferred from homology;
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00383};
KW Reference proteome {ECO:0000313|Proteomes:UP000000740};
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}.
FT DOMAIN 24..60
FT /note="TFIIB-type"
FT /evidence="ECO:0000259|Pfam:PF08271"
FT DOMAIN 123..211
FT /note="Transcription factor TFIIB cyclin-like"
FT /evidence="ECO:0000259|Pfam:PF00382"
FT REPEAT 130..213
FT /note="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT DOMAIN 219..304
FT /note="Transcription factor TFIIB cyclin-like"
FT /evidence="ECO:0000259|Pfam:PF00382"
FT REPEAT 224..305
FT /note="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT REGION 1..21
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 55..116
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 55..74
FT /note="Basic and acidic residues"
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 40
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"
SQ SEQUENCE 308 AA; 33828 MW; 7D189A807A69FC8E CRC64;
MATRDIYETG FDEDVQTNSS TNPCPECDGR VTTNAIETIC EDCGLVIDEQ RIDHGPEWRT
HDQDQRKRTG APLTAARHDR GLSTEIGRGK DANGNNLSGQ KHQRLSRMRR EQSRGRFQSK
AERNLAHGLG EVRRISGALE LSNSVRDQAC QLFRSAQNEN LLRGRSIEAI AAASVYGACR
CNGLSRLVGE VSEMARVVES RVTNAYKTLN EELGLPAKPV SPGKFVPRLA SDLECPDEIR
QRARTLAEQA EESGLTAGVH PAGFAAACLY KAGEELGYWV TQSDVAETGN VTPTTVRTHH
ETLEERVA
//
