| 2010 |
TRAP150 (THRAP3) co-localizes with splicing factors in nuclear speckles, is required for pre-mRNA splicing in vivo, activates splicing, remains associated with spliced mRNA after splicing, interacts with the exon junction complex (EJC), and when tethered to a precursor mRNA, triggers nuclear mRNA degradation independently of nonsense-mediated decay. Splicing activation and mRNA degradation functions were mapped to separable domains. |
Co-localization (immunofluorescence), in vivo splicing assays, RNA tethering assays, co-immunoprecipitation with EJC components |
Nucleic acids research |
High |
20123736
|
| 2012 |
THRAP3 is excluded from sites of DNA damage following genotoxic stress, and THRAP3 depletion causes cellular hypersensitivity to DNA-damaging agents, implicating it in the DNA damage response through its RNA processing functions. |
Mass spectrometry-based phosphoproteomics, immunofluorescence (exclusion from DNA damage foci), siRNA knockdown with clonogenic survival assays |
Molecular cell |
Medium |
22424773
|
| 2013 |
THRAP3 physically associates with HELZ2 and PPARγ in differentiated 3T3-L1 adipocytes. HELZ2 interacts with the serine/arginine-rich domain and BCLAF1-homologous region of THRAP3, while THRAP3 directly binds two helicase motifs in HELZ2. THRAP3 and HELZ2 are co-recruited to PPARγ-response elements in Fabp4/aP2 and Adipoq gene enhancers in a ligand-dependent manner, and THRAP3 knockdown attenuates PPARγ-driven adipocyte differentiation. |
Yeast two-hybrid, co-immunoprecipitation, mass spectrometry, chromatin immunoprecipitation (ChIP), siRNA knockdown with gene expression and lipid droplet readouts |
Molecular endocrinology (Baltimore, Md.) |
High |
23525231
|
| 2013 |
TRAP150 (THRAP3) localizes at active transcription loci in an RNA polymerase II-dependent manner and co-localizes with the EJC protein Magoh. Unlike BCLAF1 (Btf), TRAP150 depletion does not affect nuclear export of β-tropomyosin transcripts or global polyadenylated RNA cytoplasmic distribution, indicating distinct roles for the two paralogs in mRNA distribution. |
Immunofluorescence at reporter gene loci, siRNA knockdown, nuclear/cytoplasmic fractionation with RNA quantification |
Nucleus (Austin, Tex.) |
Medium |
23778535
|
| 2014 |
THRAP3 (Thrap3) directly interacts with PPARγ specifically when PPARγ is phosphorylated at Ser273 by CDK5, and this interaction controls diabetic gene programming in adipocytes. Knockdown of Thrap3 restores genes dysregulated by CDK5 phosphorylation of PPARγ, and in vivo antisense oligonucleotide-mediated reduction of Thrap3 in adipose tissue improves hyperglycemia and insulin resistance in high-fat-fed mice. |
Co-immunoprecipitation, phospho-specific binding assays, siRNA knockdown in cultured adipocytes, antisense oligonucleotide knockdown in mouse adipose tissue, metabolic phenotyping |
Genes & development |
High |
25316675
|
| 2014 |
TRAP150 interacts with the cleavage and polyadenylation specificity factor (CPSF) and co-fractionates with CPSF and RNA polymerase II. TRAP150 preferentially associates with U1 snRNP and activates splicing in composite terminal exons but not authentic terminal exons, providing a mechanism to regulate premature cleavage and polyadenylation (PCPA) transcripts. |
Co-immunoprecipitation, co-fractionation, in vivo splicing reporter assays, U1 snRNP inhibition experiments |
Nucleic acids research |
Medium |
25326322
|
| 2015 |
TRAP150 binds the RNA recognition motifs (RRMs) of PSF/SFPQ via a 70-residue PSF-interacting domain (PID). This interaction directly inhibits PSF's binding to RNA through RRM2, but does not prevent PSF dimerization with other DBHS proteins. TRAP150 antagonizes PSF-mediated splicing suppression across ~40 T cell splicing events. |
Co-immunoprecipitation, domain mapping with deletion mutants, in vitro RNA-binding competition assays, RASL-Seq, siRNA knockdown |
Nucleic acids research |
High |
26261210
|
| 2016 |
THRAP3 phosphorylation at Ser248 and Ser253 is significantly reduced in androgen-independent prostate cancer cells. Pull-down assays show that the phosphorylation state at these residues alters THRAP3's interaction partners: 32 proteins uniquely bind the nonphosphorylatable mutant and 31 uniquely bind the phosphomimetic form, with many differentially interacting proteins involved in RNA splicing and processing. |
Quantitative phosphoproteomics (mass spectrometry), pull-down assays with phosphomimetic and nonphosphorylatable THRAP3 mutants |
Proteomics |
Medium |
26841317
|
| 2017 |
THRAP3 is a component of a SOX9 transcriptional complex and negatively regulates SOX9 transcriptional activity during chondrogenesis. The interaction is mediated between the proline-, glutamine-, and serine-rich (PQS) domain of SOX9 and the innominate domain of THRAP3. THRAP3 knockdown increases Col2a1 expression, and co-overexpression of THRAP3 and SOX9 reduces Col2a1 levels more than SOX9 alone. |
LC-MS/MS purification of FLAG-tagged SOX9-binding proteins from knock-in mice, co-immunoprecipitation, domain mapping, siRNA knockdown, overexpression in chondrogenic cells |
Journal of bone and mineral metabolism |
Medium |
28770354
|
| 2017 |
Depletion of THRAP3 and/or BCLAF1 causes sensitivity to DNA-damaging agents, defective DNA repair, and genomic instability. THRAP3 and BCLAF1 regulate selective mRNA splicing and nuclear export of transcripts encoding key DDR proteins including ATM kinase. Cancer-associated mutations in THRAP3 deregulate processing of THRAP3/BCLAF1-regulated transcripts and impair DNA repair. |
siRNA knockdown, clonogenic survival assays, comet assay, γH2AX foci, RNA splicing and nuclear export assays, mutant THRAP3 expression |
Nucleic acids research |
Medium |
29112714
|
| 2017 |
Depletion of TRAP150 (THRAP3) causes mitotic chromosome misalignment defects and alters the abundance of transcripts encoding mitotic regulators, suggesting TRAP150 controls mitotic progression through regulation of mitotic checkpoint regulator mRNAs. |
siRNA knockdown, immunofluorescence (mitotic defect scoring), RT-PCR for mitotic regulator transcripts |
International journal of molecular sciences |
Low |
28895891
|
| 2021 |
Thrap3 interacts with methylated DDX5 (arginine methylation required) and localizes to R-loops. The Thrap3-DDX5 axis recruits XRN2 (5'-3' exoribonuclease 2) to R-loops to promote their resolution. Loss of Thrap3 increases R-loop accumulation and DNA damage. |
Co-immunoprecipitation, S9.6 antibody-based R-loop detection (DRIP assay), proximity ligation assays, Thrap3 knockdown with γH2AX readout |
Experimental & molecular medicine |
Medium |
34697388
|
| 2021 |
Nuclear PD-L1 interacts with THRAP3 to upregulate BUB1 expression, thereby accelerating cell cycle progression in BRAF-mutated colorectal cancer cells. PD-L1 translocation into the nucleus is facilitated by binding of p-ERK. |
Co-immunoprecipitation, nuclear fractionation, siRNA knockdown, reporter assays, xenograft models |
Cancer letters |
Medium |
34923044
|
| 2021 |
CLK1 phosphorylates THRAP3 at Ser243, and this phosphorylation is required for THRAP3's regulatory interaction with phosphorylated PPARγ. CLK1-THRAP3 interaction was confirmed by co-immunoprecipitation. This CLK1-THRAP3-PPARγ axis impairs adipose tissue browning and insulin sensitivity. |
Phosphoproteomics, co-immunoprecipitation, kinase assay (CLK1 phosphorylation of THRAP3), CLK1 genetic knockout and chemical inhibition in mice |
Frontiers in physiology |
Medium |
34526909
|
| 2021 |
THRAP3 depletion in 3T3-L1 adipocytes reduces PPARγ mRNA stability (demonstrated by actinomycin D chase), decreases PPARγ protein levels, and attenuates TZD-mediated anti-inflammatory actions including suppression of lipolysis and pro-inflammatory gene expression. |
siRNA knockdown, actinomycin D mRNA stability assay, RT-qPCR, Western blot, lipolysis assay |
Journal of molecular endocrinology |
Medium |
34370683
|
| 2023 |
Thrap3 deficiency increases cytosolic translocation of AMPK from the nucleus and enhances AMPK activation through direct physical interaction between AMPK and the C-terminal domain of Thrap3. Liver-specific Thrap3 knockout improves lipid accumulation, enhances autophagy, and improves mitochondrial function in a high-fat diet NAFLD model. |
Liver-specific Thrap3 knockout mice, co-immunoprecipitation, subcellular fractionation, AMPK activity assays, autophagic flux assays |
Experimental & molecular medicine |
Medium |
37524868
|
| 2023 |
Cross-linking mass spectrometry of endogenous immunoprecipitated complexes demonstrates that Thrap3 and Bclaf1 interact closely with each other and with Erh, mapping interaction surfaces to the non-disordered portions of these largely disordered proteins, suggesting they form a novel TEB (Thrap3-Erh-Bclaf1) complex. |
Cross-linking mass spectrometry (XL-MS) with MS-cleavable crosslinker DSSO on endogenous immunoprecipitated proteins |
Wellcome open research |
Medium |
35865489
|
| 2023 |
METTL3-mediated m6A methylation stabilizes THRAP3 mRNA in multiple myeloma cells. Metformin reduces METTL3 activity, decreasing m6A modification on THRAP3 mRNA and reducing its stability and expression. THRAP3 knockdown reverses the pro-proliferative/anti-apoptotic effects of METTL3 overexpression. |
MeRIP (m6A RNA immunoprecipitation), siRNA knockdown, METTL3 overexpression, mRNA stability assays, rescue experiments |
Cell cycle (Georgetown, Tex.) |
Medium |
36762777
|
| 2025 |
THRAP3 recruits the splicing factor SLU7 to facilitate GIT2 Exon14 skipping, thereby promoting ferroptosis resistance in AML cells by inhibiting iron accumulation and promoting GSH synthesis. THRAP3 knockdown suppresses AML cell proliferation and delays tumor growth in vivo; inhibition of GIT2 Exon14 skipping reverses THRAP3-induced ferroptosis resistance. |
Co-immunoprecipitation (THRAP3-SLU7 interaction), alternative splicing assays, THRAP3 knockdown and overexpression, RSL3/erastin-induced ferroptosis assays, orthotopic and subcutaneous xenograft models |
Nature communications |
Medium |
41326370
|
| 2026 |
THRAP3 knockout in C2C12 myotubes suppresses expression of myogenic regulatory factors (Myod1, Mef2c, myosin heavy chain genes), impairs myogenic differentiation and muscle fiber diameter, and attenuates T3 (triiodothyronine)-induced gene expression, establishing THRAP3 as a regulator of myogenesis and thyroid hormone-responsive gene expression in skeletal muscle. |
THRAP3 knockout C2C12 cells, RT-qPCR, Western blot, morphological analysis of myotube diameter, T3 stimulation assays |
PloS one |
Medium |
41570000
|