| 1995 |
TAFII31 (TAF9) directly binds the amino-terminal transcriptional activation domain of p53 and is required for p53-mediated transcriptional activation; antibodies against TAFII31 inhibit p53-activated but not basal transcription in vitro, establishing TAFII31 as a coactivator of p53. |
In vitro transcription assay, antibody inhibition, protein binding/interaction assays |
Proceedings of the National Academy of Sciences of the United States of America |
High |
7761466
|
| 1995 |
TAFII31 (TAF9) is a component of TFIID and interacts with TAFII80 via TAFII80's N-terminal residues 1–100; TAF9 shows sequence similarity to histone H3, suggesting a histone-fold-based core structure within TFIID. |
Coimmunoprecipitation, domain-mapping mutagenesis, sequence analysis |
Proceedings of the National Academy of Sciences of the United States of America |
High |
7667268
|
| 1998 |
TAFII31 (TAF9) is a component of the human STAGA complex (SPT3-TAFII31-GCN5-L), a histone acetyltransferase complex distinct from TFIID; STAGA is proposed as the human homologue of yeast SAGA. |
Co-immunoprecipitation, native complex isolation, histone acetyltransferase activity assay |
The Journal of biological chemistry |
High |
9726987
|
| 1998 |
The corepressor N-CoR and its variants RIP13a and RIP13Δ1 directly interact with TAFII32 (TAF9) both in vivo and in vitro; this interaction involves N-CoR interaction domain II and results in a non-functional complex that ablates the TFIIB–TAFII32 interaction critical for transcription initiation. |
Co-immunoprecipitation, in vitro binding assay, site-directed mutagenesis, functional transcription assay |
Nucleic acids research |
Medium |
9611234
|
| 1997 |
The transcriptional activation domain of CIITA interacts directly with TAFII32 (TAF9), and reduced CIITA binding to TAFII32 correlates with decreased transcriptional activation of MHC class II genes. |
Yeast two-hybrid, in vitro binding assay, site-directed mutagenesis, transcription assay |
Nucleic acids research |
Medium |
9171108
|
| 2001 |
TAF(II)31 (TAF9) stabilizes p53 by competing with mdm2 for binding to p53's amino-terminal domain, thereby inhibiting mdm2-mediated ubiquitination of p53, increasing p53 levels, activating p53 transcriptional activity, and leading to p53-dependent growth arrest; UV-induced p53 stabilization coincides with increased p53–TAF(II)31 and decreased p53–mdm2 association. |
Co-immunoprecipitation, ubiquitination assay, cell growth assay, site-directed mutagenesis (non-p53-binding mutant) |
The Journal of biological chemistry |
High |
11278372
|
| 2002 |
Mdm-2 blocks accessibility of p53 to TAF(II)31 (TAF9); disruption of the intramolecular Thr18–Asp21 hydrogen bond in p53 attenuates Mdm-2 binding without directly affecting TAF(II)31 binding, but prior Mdm-2 incubation modulates TAF(II)31 interaction with p53, facilitating TAF(II)31 recruitment and enhanced p21 transactivation. |
Site-directed mutagenesis, in vitro binding assay, cell-based transcription/p21 expression assay |
Oncogene |
Medium |
12370832
|
| 2000 |
Depletion of cTAF(II)31 (TAF9) in chicken DT40 cells causes loss of most other TAFII subunits but does not significantly reduce total poly(A)+ mRNA transcription or prevent c-fos activation after serum starvation, indicating TAF9 is not essential for bulk mRNA transcription in metazoan cells. |
Conditional gene targeting (tetracycline-repressible), pulse-labeling transcription assay, Northern blot, Western blot |
Molecular and cellular biology |
High |
10866663
|
| 2003 |
TAF9 depletion in DT40 cells severely disrupts TFIID integrity; the histone fold motif (HFM) of TAF9 is functionally important for TFIID assembly; TAF9 and TAF9L are partly redundant, but TAF9L plays a role in transcriptional repression/silencing. |
Conditional gene targeting, RNA interference, co-immunoprecipitation, gene expression analysis |
The Journal of biological chemistry |
Medium |
12837753
|
| 2005 |
TAF9 is a shared subunit of both TFIID and TFTC/SAGA complexes; TAF9b (TAF9L) is a paralog that also integrates into these complexes; TAF9 and TAF9b have differential roles in apoptosis regulation (differential p53 stabilization) and regulate distinct but partially overlapping gene sets; both are essential for cell viability. |
Mass spectrometry, Co-IP, siRNA knockdown, gene expression microarray, apoptosis assay |
Molecular and cellular biology |
High |
15899866
|
| 2005 |
TAF9 genetically interacts with Mediator, chromatin modification/remodeling complexes (including all nonessential SWR-C subunits), regulators of transcription elongation, and G1/S cell cycle genes; TAF9 and SWR-C are both required for expression of the housekeeping gene RPS5, suggesting a role in transcription elongation in the context of SAGA. |
Genome-wide synthetic genetic array (SGA) using temperature-sensitive taf9 allele, chromatin immunoprecipitation, epistasis analysis |
Genetics |
Medium |
16118188
|
| 2006 |
Walleye dermal sarcoma virus retroviral cyclin (rv-cyclin) directly binds TAF9 via a conserved motif present in multiple TAF9-binding transcriptional activators, competitively interfering with VP16–TAF9 interaction and inhibiting VP16-dependent transcription. |
GST pulldown, in vitro protein–protein interaction assay, transcription assay, point mutagenesis |
Journal of virology |
Medium |
17035330
|
| 2012 |
The conserved C-terminal HEAT repeat domain (TAF6C) of TAF6 is required for the TAF6–TAF9 interaction within TFIID; HEAT repeat mutations in TAF6C disrupt TAF6–TAF9 binding and more strongly disrupt formation of the TAF5–TAF6–TAF9 trimeric complex; these mutations cause instability of TAF6 in cells, indicating poor TFIID incorporation. |
Crystal structure of TAF6C at 1.9 Å, site-directed mutagenesis, Co-IP, cell-based stability assay |
The Journal of biological chemistry |
High |
22696218
|
| 2014 |
The conserved C-terminal region domain (CRD) of TAF9 (yeast Taf9) is required for TFIID and SAGA occupancy at promoters and for transcriptional activation genome-wide; the CRD is not needed for Taf9–Taf6 interaction or complex integrity in extracts, but is essential for preinitiation complex assembly at promoters. |
Transcriptome microarray, chromatin immunoprecipitation (ChIP), genetic epistasis with spt20Δ |
Molecular and cellular biology |
Medium |
24550006
|
| 2014 |
Drosophila E(y)1/TAF9 interacts with the Notch intracellular domain (NICD) and Suppressor of Hairless [Su(H)] to facilitate transcriptional output of Notch signaling; genetic epistasis places E(y)1/TAF9 downstream of Notch cleavage; E(y)1/TAF9 knockdown causes Notch-mutant-like phenotypes in follicle cells and wing discs. |
In vivo RNAi screen, epistasis analysis, co-immunoprecipitation in S2 cells, reporter gene assay |
Journal of cell science |
Medium |
25015288
|
| 2015 |
TAF9 directly binds GLI1 and GLI2 (but not GLI3) oncoproteins via their acidic α-helical transactivation domains; GLI1–TAF9 binding is required for oncogenic cell transformation; p53 binds TAF9 with higher affinity than GLI1 and sequesters TAF9 from GLI1, thereby inhibiting GLI-induced transactivation. |
Cell-free pulldown assay, co-immunoprecipitation, site-directed mutagenesis (point mutations abolishing or establishing TAF9 binding), cell transformation assay, transactivation assay |
DNA repair |
Medium |
26282181
|
| 2017 |
HDAC1 deacetylates TAF9; acetylated TAF9 fails to bind to promoters and causes disassociation of the TFIID complex and transcriptional repression; deacetylation of TAF9 by HDAC1 is required for TFIID recruitment and activation of PU.1 transcription. |
ChIP, HDAC inhibitor treatment (acetylation increase), HDAC1 knockdown/overexpression, co-immunoprecipitation, promoter-binding assay |
FASEB journal |
Medium |
28572446
|
| 2017 |
Drosophila TRF2 and TAF9 cooperatively regulate lipid droplet size and phospholipid fatty acid composition in the larval fat body by controlling transcription of peroxisomal fatty acid β-oxidation genes. |
RNAi knockdown, mutant analysis, RNA profiling, lipidomics |
PLoS genetics |
Medium |
28273089
|
| 2017 |
Cancer-testis antigen HCA587/MAGEC2 directly interacts with TAF9 via a 9-amino acid transactivation domain motif; the interaction occurs in the nucleus and is confirmed by co-immunoprecipitation and GST pulldown; the conserved region of TAF9 is critical for HCA587/MAGEC2 binding. |
Co-immunoprecipitation (transfected and endogenous), GST pulldown, immunofluorescence co-localization |
Molecular medicine reports |
Low |
29257297
|
| 2021 |
TAF9 is deacetylated by HDAC1; TAF9 overexpression increases fatty acid β-oxidation and reduces lipid droplet accumulation in NAFLD models; the DSS compound activates TAF9 via HDAC1-mediated deacetylation to confer protection against NAFLD. |
TAF9 overexpression/knockdown in vivo and in vitro, lipid droplet quantification, β-oxidation assay, pharmacological HDAC1 activation |
Frontiers in pharmacology |
Medium |
34925033
|
| 2025 |
lncRNA938 directly binds TAF9 and regulates its nuclear localization; TAF9 activates TTK transcription via promoter binding; the lncRNA938–TAF9–TTK axis promotes EMT and hepatoblastoma progression. |
RNA immunoprecipitation, RNA pulldown, immunofluorescence (nuclear localization), luciferase reporter assay, Western blot, in vitro/in vivo functional assays |
Journal of translational medicine |
Medium |
40841910
|