The gene TATA binding protein is referred to in FlyBase by the symbol Dmel\Tbp (CG9874, FBgn0003687). It is a protein_coding_gene from Drosophila melanogaster. There is experimental evidence that it has the molecular function: protein binding; TBP-class protein binding RNA polymerase II transcription factor activity involved in preinitiation complex assembly; transcription factor binding; TFIIA-class transcription factor binding; RNA polymerase II core promoter sequence-specific DNA binding transcription factor activity involved in preinitiation complex assembly. There is experimental evidence that it is involved in the biological process: transcription initiation from RNA polymerase II promoter; snRNA transcription from RNA polymerase III promoter; regulation of transcription from RNA polymerase III promoter; tRNA transcription from RNA polymerase III promoter. 31 alleles are reported. No phenotypic data is available. It has one annotated transcript and one annotated polypeptide. Protein features are: Beta2-adaptin/TBP, C-terminal domain; TATA-box binding protein. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of high expression to a trough of low expression. Peak expression observed within 00-06 hour embryonic stages. Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: larval central nervous system, adult ovary. Comments on Affy2 ProbeSet: ProbeSet 1637663_at completely aligns to an exonic region of the only FlyBase-annotated transcript isoform of Tbp. Gene sequence location is 2R:17573705..17575145.
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FB2013_03
FB2013_02
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Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: larval central nervous system, adult ovary.
[download data (TSV)]
Guide to FlyAtlas expression level colors
No expression (0 - 9.999)
Low expression (10 - 99.999)
Moderate expression (100 - 499.999)
High level expression (500 - 999.999)
Very high expression (>999.999)
Linear, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
108.175
Larval Midgut
25.4
Larval Hindgut
42.1
Larval Malpighian Tubules
43.3
Larval Fat Body
34.6
Larval Salivary Gland
84.9
Larval Trachea
86.575
Larval Carcass
41.075
Adult Head
36.4
Adult Eye
47.55
Adult Brain
70.7
Adult Thoracic-Abdominal Ganglion
59.7
Adult Crop
57.3
Adult Midgut
38.7
Adult Hindgut
44.9
Adult Malpighian Tubules
45.4
Adult Fat Body
21.2
Adult Salivary Gland
78.2
Adult Heart
36.075
Adult VirginFemale Spermatheca
25.8
Adult InseminatedFemale Spermatheca
22.9
Adult Ovary
240.9
Adult Testis
16.5
Adult Male Accessory Gland
61.5
Adult Carcass
30.1
Expression Level Scale
None
Low
Moderate
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
108.175
Larval Midgut
25.4
Larval Hindgut
42.1
Larval Malpighian Tubules
43.3
Larval Fat Body
34.6
Larval Salivary Gland
84.9
Larval Trachea
86.575
Larval Carcass
41.075
Adult Head
36.4
Adult Eye
47.55
Adult Brain
70.7
Adult Thoracic-Abdominal Ganglion
59.7
Adult Crop
57.3
Adult Midgut
38.7
Adult Hindgut
44.9
Adult Malpighian Tubules
45.4
Adult Fat Body
21.2
Adult Salivary Gland
78.2
Adult Heart
36.075
Adult VirginFemale Spermatheca
25.8
Adult InseminatedFemale Spermatheca
22.9
Adult Ovary
240.9
Adult Testis
16.5
Adult Male Accessory Gland
61.5
Adult Carcass
30.1
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
108.175
Larval Midgut
25.4
Larval Hindgut
42.1
Larval Malpighian Tubules
43.3
Larval Fat Body
34.6
Larval Salivary Gland
84.9
Larval Trachea
86.575
Larval Carcass
41.075
Adult Head
36.4
Adult Eye
47.55
Adult Brain
70.7
Adult Thoracic-Abdominal Ganglion
59.7
Adult Crop
57.3
Adult Midgut
38.7
Adult Hindgut
44.9
Adult Malpighian Tubules
45.4
Adult Fat Body
21.2
Adult Salivary Gland
78.2
Adult Heart
36.075
Adult VirginFemale Spermatheca
25.8
Adult InseminatedFemale Spermatheca
22.9
Adult Ovary
240.9
Adult Testis
16.5
Adult Male Accessory Gland
61.5
Adult Carcass
30.1
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
108.175
Larval Midgut
25.4
Larval Hindgut
42.1
Larval Malpighian Tubules
43.3
Larval Fat Body
34.6
Larval Salivary Gland
84.9
Larval Trachea
86.575
Larval Carcass
41.075
Adult Head
36.4
Adult Eye
47.55
Adult Brain
70.7
Adult Thoracic-Abdominal Ganglion
59.7
Adult Crop
57.3
Adult Midgut
38.7
Adult Hindgut
44.9
Adult Malpighian Tubules
45.4
Adult Fat Body
21.2
Adult Salivary Gland
78.2
Adult Heart
36.075
Adult VirginFemale Spermatheca
25.8
Adult InseminatedFemale Spermatheca
22.9
Adult Ovary
240.9
Adult Testis
16.5
Adult Male Accessory Gland
61.5
Adult Carcass
30.1
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
108.175
Larval Midgut
25.4
Larval Hindgut
42.1
Larval Malpighian Tubules
43.3
Larval Fat Body
34.6
Larval Salivary Gland
84.9
Larval Trachea
86.575
Larval Carcass
41.075
Adult Head
36.4
Adult Eye
47.55
Adult Brain
70.7
Adult Thoracic-Abdominal Ganglion
59.7
Adult Crop
57.3
Adult Midgut
38.7
Adult Hindgut
44.9
Adult Malpighian Tubules
45.4
Adult Fat Body
21.2
Adult Salivary Gland
78.2
Adult Heart
36.075
Adult VirginFemale Spermatheca
25.8
Adult InseminatedFemale Spermatheca
22.9
Adult Ovary
240.9
Adult Testis
16.5
Adult Male Accessory Gland
61.5
Adult Carcass
30.1
Expression Level Scale
None
Low
Moderate
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
108.175
Larval Midgut
25.4
Larval Hindgut
42.1
Larval Malpighian Tubules
43.3
Larval Fat Body
34.6
Larval Salivary Gland
84.9
Larval Trachea
86.575
Larval Carcass
41.075
Adult Head
36.4
Adult Eye
47.55
Adult Brain
70.7
Adult Thoracic-Abdominal Ganglion
59.7
Adult Crop
57.3
Adult Midgut
38.7
Adult Hindgut
44.9
Adult Malpighian Tubules
45.4
Adult Fat Body
21.2
Adult Salivary Gland
78.2
Adult Heart
36.075
Adult VirginFemale Spermatheca
25.8
Adult InseminatedFemale Spermatheca
22.9
Adult Ovary
240.9
Adult Testis
16.5
Adult Male Accessory Gland
61.5
Adult Carcass
30.1
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
108.175
Larval Midgut
25.4
Larval Hindgut
42.1
Larval Malpighian Tubules
43.3
Larval Fat Body
34.6
Larval Salivary Gland
84.9
Larval Trachea
86.575
Larval Carcass
41.075
Adult Head
36.4
Adult Eye
47.55
Adult Brain
70.7
Adult Thoracic-Abdominal Ganglion
59.7
Adult Crop
57.3
Adult Midgut
38.7
Adult Hindgut
44.9
Adult Malpighian Tubules
45.4
Adult Fat Body
21.2
Adult Salivary Gland
78.2
Adult Heart
36.075
Adult VirginFemale Spermatheca
25.8
Adult InseminatedFemale Spermatheca
22.9
Adult Ovary
240.9
Adult Testis
16.5
Adult Male Accessory Gland
61.5
Adult Carcass
30.1
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
108.175
Larval Midgut
25.4
Larval Hindgut
42.1
Larval Malpighian Tubules
43.3
Larval Fat Body
34.6
Larval Salivary Gland
84.9
Larval Trachea
86.575
Larval Carcass
41.075
Adult Head
36.4
Adult Eye
47.55
Adult Brain
70.7
Adult Thoracic-Abdominal Ganglion
59.7
Adult Crop
57.3
Adult Midgut
38.7
Adult Hindgut
44.9
Adult Malpighian Tubules
45.4
Adult Fat Body
21.2
Adult Salivary Gland
78.2
Adult Heart
36.075
Adult VirginFemale Spermatheca
25.8
Adult InseminatedFemale Spermatheca
22.9
Adult Ovary
240.9
Adult Testis
16.5
Adult Male Accessory Gland
61.5
Adult Carcass
30.1
Expression Level Scale
None
Low
Moderate
High
Very high
Heatmap
Tissue
Expression Level
Larval Central Nervous System
Larval Midgut
Larval Hindgut
Larval Malpighian Tubules
Larval Fat Body
Larval Salivary Gland
Larval Trachea
Larval Carcass
Adult Head
Adult Eye
Adult Brain
Adult Thoracic-Abdominal Ganglion
Adult Crop
Adult Midgut
Adult Hindgut
Adult Malpighian Tubules
Adult Fat Body
Adult Salivary Gland
Adult Heart
Adult VirginFemale Spermatheca
Adult InseminatedFemale Spermatheca
Adult Ovary
Adult Testis
Adult Male Accessory Gland
Adult Carcass
FlyAtlas Organ/Tissue Expression, larval vs. adult
Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of high expression to a trough of low expression. Peak expression observed within 00-06 hour embryonic stages.
[download data (TSV)]
inferred from sequence or structural similarity with human TBP AND inferred from sequence or structural similarity with human TBPL1 AND inferred from sequence or structural similarity with Saccharomyces SPT15 AND inferred from sequence or structural similarity with worm tbp-1 AND inferred from sequence or structural similarity with worm tlp-1
inferred from sequence or structural similarity with human TBP AND inferred from sequence or structural similarity with human TBPL1 AND inferred from sequence or structural similarity with Saccharomyces SPT15 AND inferred from sequence or structural similarity with worm tbp-1 AND inferred from sequence or structural similarity with worm tlp-1
Please Note FlyBase no
longer curates genomic clone accessions so this list
may not be complete
cDNA Clones ( 27 )
Please Note
This section lists
cDNAs and ESTs that fall within the genomic extent
of the gene model, which may include cDNAs and ESTs
of genes within introns, or of overlapping genes.
Please see GBrowse for alignment of the cDNAs and ESTs
to the gene model.
DNA-protein interactions: genome-wide binding profile assayed for Tbp protein in Kc167 cells; see Chromatin_types_NKI collection report. Individual protein-binding experiments listed under "Samples" at GEO_GSE22069 (http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE22069).
Hsf interacts directly with the general transcription factor Tbp and these two factor bind cooperatively to heat shock promoters. Interaction of Hsf and Tbp is mediated by residues in both the amino and carboxy terminus of Hsf. The acidic domain of RpII215 associates with Tbp in vitro and is specifically displaced from Tbp upon addition of Hsf. Trl also interacts with Hsf to further stabilise Hsf binding to heat shock elements (HSEs).
TfIID binds to a conserved downstream basal promoter element (DPE) that is present in many TATA-box deficient promoters. The DPE acts in conjunction with the initiation site sequence to provide a binding site for TfIID in the absence of a TATA box to mediate transcription of TAT-less promoters.
The tandem Adh promoters are differentially transcribed in the embryo owing to critical differences in the core promoter elements. Reconstituted differential Adh promoter transcription in vitro provides evidence that selective Adh promoter utilization is mediated by a specific Tbp-TAF complex in combination with TfIIA. TAFs in the Tbp complex are required for discrimination between the Adh distal and proximal initiator elements.
A quadruple complex containing Tbp, Taf1, Taf4 and Taf6 mediates transcriptional synergism by bcd and hb, whereas triple Tbp-Taf complexes lacking one or other coactivator failed to support synergistic activation. The concerted action of multiple regulators with different coactivators helps to establish the pattern and level of segmentation gene transcription during development.
eve efficiently blocks, or "squelches", Tbp-enhanced transcription in cotransfected Schneider L2 cells. Squelching does not require eve DNA-binding sites on the reporter plasmids used, but is dependent on the presence of the eve repression domain.
The assembly and purification of various functional Tbp TAF complexes demonstrate that Tbp plus the TAFs is sufficient to replace endogenous TFIID to support activated transcription in vitro.
The role of the two essential transcription components, TfIIIB and TfIIIC, in response to TPA treatment is studied; only TfIIIB activity is increased. Tbp activity is also increased. Results suggest that the induction of transcription is due to an increase in the activity of TfIIIB which results in an increase in the number of functional transcription complexes.
Taf1 contains at least two sites of interaction with Tbp. N terminal sites mediate strong physical interaction with Tbp and inhibit Tbp function. Interaction of the N terminal region with Tbp may directly control TATA-box binding.
Recombinant purified TfIIA-L and TfIIA-S can form a stable complex with Tbp on DNA, the recombinant protein can stimulate basal transcription and enhances transcriptional activation.
Purified Taf5 is unable to bind Tbp directly or to interact strongly with the C-terminal domain of Taf1, but can only interact with a complex containing Tbp, Taf1, Taf4 and Taf6.
Purified TfIID, containing endogenous Tbp and at least seven TAFs is necessary and sufficient for Sp1 activation in a reconstituted transcription reaction.
In vitro expressed Taf4 protein interacts directly with Taf1 which itself interacts with Tbp, a complex of all three is suggested. Binding study with various mutants of Taf1 suggests that both Taf4 and Tbp interact with the N-terminal 352-amino acid portion of Taf1.
A number of polypeptides (encoded by Taf1, Taf4, Taf5, Taf6, e(y)1 and Taf12) that are tightly associated with Tbp and are native TFIID components have been purified. Protein blotting experiments suggest that one of these proteins, Taf1, interacts directly with Tbp, while the association between Tbp and the other proteins is either weak or is an indirect association via Taf1.
TATA complex formation on the Hsp70Bb core promoter shows sequence dependence at the TATA element, at the transcription start site and further downstream. The TATA complex contains Tbp.
TfIID transcription factor is a multiprotein complex including TATA-binding protein (Tbp) and Tbp-associated factors (TAFs). Taf1 has been partially cloned and the assembly of a partial complex containing recombinant Tbp, Taf1 and Taf4 analysed. This triple complex supports activation of HeLa cell Sp1 and reveals specific interactions between Tbp, Taf1 and Taf4.
There is a weak but reproducible interaction between the products of the Tbp and Taf6 loci in vitro. Tbp, Taf1, Taf4 and Taf6 products can assemble into a mini-complex in vitro, showing that Taf6 and Taf4 occupy distinct binding sites on the C terminal part of Taf1.
A TATA-dependent protein-DNA complex is found in fractionated embryonic nuclear extracts. DNase I footprint analysis identifies polypeptides (including Taf12, Tbp and RpII140) that require the Hsp70Bb TATA element for binding to regions of the Hsp70Bb promoter.