| 1999 |
AATF (apoptosis antagonizing transcription factor) was identified as a binding partner of Dlk/ZIP kinase (a serine/threonine kinase) via yeast two-hybrid and shown to interfere with Dlk-induced apoptosis. AATF contains an acidic domain and putative leucine zipper and exhibits transcriptional transactivation activity as a Gal4-BD fusion protein. |
Yeast two-hybrid interaction screen, transactivation assay (Gal4-BD fusion), apoptosis interference assay |
FEBS letters |
Medium |
10580117
|
| 2000 |
Che-1/AATF interacts with RNA polymerase II subunit hRPB11 and with the retinoblastoma protein (Rb) via two distinct domains, and functionally represses Rb's growth suppression by counteracting Rb-mediated inhibition of E2F1 transactivation. |
Co-immunoprecipitation, GST pulldown, transactivation reporter assay |
FASEB journal |
Medium |
10783144
|
| 2002 |
Che-1/AATF contacts the Rb pocket region and competes with HDAC1 for the same Rb binding site, displacing HDAC1 from Rb/E2F complexes in vitro and from E2F target gene promoters in vivo, thereby activating DNA synthesis. Che-1-specific RNA interference reduces E2F activity and cell proliferation in Rb-proficient but not Rb-deficient cells. |
Co-immunoprecipitation, chromatin immunoprecipitation (ChIP), RNA interference, flow cytometry (DNA synthesis) |
Cancer cell |
High |
12450794
|
| 2003 |
Che-1/AATF overexpression in colon carcinoma cells activates p21WAF1/CIP1 expression in a p53-independent manner by displacing HDAC1 from Sp1 binding sites on the p21 promoter and accumulating acetylated histone H3, causing G1 arrest. Che-1 RNAi reduces p21 transactivation and increases proliferation. |
Chromatin immunoprecipitation (ChIP), RNA interference, flow cytometry, reporter assay |
The Journal of biological chemistry |
High |
12847090
|
| 2003 |
AATF colocalizes with Par-4 in cytoplasmic and nuclear compartments and interacts directly with Par-4 via the leucine zipper domain in neural cells. AATF/Par-4 complex formation is required for AATF to block Par-4-induced aberrant production and secretion of amyloid beta peptide 1-42. |
Co-immunoprecipitation, co-localization (immunofluorescence), ELISA for Aβ secretion, overexpression/co-expression assays |
The Journal of biological chemistry |
Medium |
14627703
|
| 2003 |
Che-1/AATF directly interacts with Tau protein via Tau's amino-terminal region (not involved in microtubule binding) in rat cerebellar granule neurons, partially colocalizing in the cytoplasm; this interaction is modulated during neuronal apoptosis. |
Co-immunoprecipitation from neuronal lysates, FRET analysis, overexpression in COS-7 cells |
Molecular and cellular neurosciences |
Medium |
14697667
|
| 2004 |
AATF overexpression in PC12 neural cells suppresses superoxide production, inhibits peroxynitrite formation and membrane lipid peroxidation, and protects against amyloid beta-peptide-induced apoptosis. Inhibition of AATF induction sensitizes cortical neurons to Aβ toxicity. |
Overexpression/knockdown in PC12 and cortical neurons, ROS assay, apoptosis assay |
Neurobiology of disease |
Medium |
15207272
|
| 2006 |
Che-1/AATF contributes to the DNA damage response: checkpoint kinases ATM/ATR and Chk2 physically interact with Che-1 and phosphorylate it in response to DNA damage, leading to Che-1 accumulation, its specific recruitment to TP53 and p21 promoters, transcriptional activation of p53, and maintenance of the G2/M checkpoint. |
Co-immunoprecipitation, chromatin immunoprecipitation (ChIP), phosphorylation assay, flow cytometry (cell cycle), RNA interference |
Cancer cell |
High |
17157788
|
| 2007 |
In response to apoptotic stimuli, Che-1/AATF interacts with the peptidyl-prolyl isomerase Pin1; Pin1-induced conformational changes are required for Che-1 interaction with E3 ubiquitin ligase HDM2, which promotes Che-1 ubiquitination and proteasomal degradation. A Che-1 mutant unable to bind Pin1 has increased half-life and reduced apoptosis. |
Co-immunoprecipitation, ubiquitination assay, half-life measurement, site-directed mutagenesis, apoptosis assay |
The Journal of biological chemistry |
High |
17468107
|
| 2007 |
NRAGE overexpression inhibits nuclear localization of Che-1/AATF by sequestering it in the cytoplasm, and targets endogenous Che-1 for proteasome-dependent degradation. Che-1 overexpression completely reverts NRAGE-induced cell death, identifying them as functional antagonists. |
Co-immunoprecipitation, subcellular fractionation/localization (EGFP fusion), proteasome inhibitor rescue, cell death assay |
Journal of cell science |
Medium |
17488777
|
| 2007 |
Che-1/AATF phosphorylation following DNA damage promotes XIAP expression in a NF-κB-dependent manner, and XIAP expression is required for the antiapoptotic activity of Che-1. |
Chromatin immunoprecipitation (ChIP), RNA interference, reporter assay, in vivo tumor xenograft with siRNA |
Cell death and differentiation |
Medium |
18049476
|
| 2008 |
Che-1/AATF overexpression induces Cdk5 mRNA and protein expression, directly interacts with Cdk5 in vivo without competing with Cdk5/p35 binding (thus associating with the active kinase complex), and is itself a substrate of Cdk5 kinase. |
Co-immunoprecipitation, Western blot, in vitro kinase assay |
Neuroreport |
Medium |
18388733
|
| 2009 |
AATF is induced by ER stress through the PERK-eIF2α pathway and transcriptionally activates AKT1 via STAT3, sustaining Akt1 activation and promoting cell survival. AATF knockdown sensitizes cells to ER stress-mediated death; ectopic AATF or constitutively active AKT1 confers resistance. |
Gene expression profiling, RNA interference, overexpression, Western blot, reporter assay |
Cell death and differentiation |
Medium |
19911006
|
| 2010 |
Che-1/AATF is required for sustaining mutant p53 expression in cancer cell lines; Che-1 depletion by siRNA induces apoptosis in vitro and in vivo and activates DNA damage checkpoint response and p73 transactivation in mutant-p53-expressing cells. |
siRNA knockdown, ChIP, Western blot, in vivo xenograft |
Cancer cell |
Medium |
20708154
|
| 2011 |
PARP-1 directly interacts with Che-1/AATF, promotes its poly(ADP-ribosyl)ation in vitro and in vivo, and stabilizes Che-1 after DNA damage independently of ATM kinase activity. Reduced PARP activity or PARP-1 knockout impairs Che-1 accumulation and its occupancy at the p21 promoter. |
Co-immunoprecipitation, in vitro PARylation assay, ChIP, PARP inhibitor/knockout, epistasis with ATM inhibitor |
DNA repair |
High |
21317046
|
| 2012 |
Upon genotoxic stress, AATF/Che-1 is phosphorylated by MK2 (downstream of p38), which releases AATF from cytoplasmic MRLC3 and triggers nuclear translocation. Nuclear AATF binds PUMA, BAX, and BAK promoter regions to repress p53-driven transcription of pro-apoptotic genes. Phospho-mimicking AATF confers adriamycin resistance in vivo, while AATF-depleted tumors show enhanced drug response. |
Kinase assay (MK2), co-immunoprecipitation (MRLC3), subcellular fractionation, ChIP, site-directed mutagenesis, xenograft experiments |
The EMBO journal |
High |
22909821
|
| 2012 |
AATF (nucleolar) acts as a cofactor required for c-Jun-mediated apoptosis. UV irradiation triggers AATF translocation from the nucleolus to the nucleus, where it physically associates with c-Jun. AATF overexpression or knockout levels proportionally alter c-Jun phosphorylation and expression of FasL and TNF-α. AATF mutants defective in c-Jun binding are also defective in AP-1 activity and apoptosis induction. |
Co-immunoprecipitation, subcellular localization (translocation assay), deletion mutagenesis, reporter assay, knockout MEFs |
Molecular biology of the cell |
High |
22933572
|
| 2013 |
Che-1/AATF localizes to interphase centrosomes and accumulates there following DNA damage or spindle poisons. Che-1 depletion generates supernumerary centrosomes, multinucleated cells, and multipolar spindles. Che-1 is required for Chk1 binding to pericentrin and centrosomal localization of Chk1, which regulates centrosomal cyclin B-Cdk1 activation and mitotic entry timing. |
Immunofluorescence localization, siRNA knockdown, co-immunoprecipitation (Chk1-pericentrin), flow cytometry, centrosome counting |
The Journal of biological chemistry |
High |
23798705
|
| 2014 |
HIPK2 interacts with Che-1/AATF and phosphorylates it at specific residues upon genotoxic stress, strongly enhancing HDM2/Che-1 interaction and subsequent ubiquitin-mediated proteasomal degradation. HIPK2 depletion reduces Che-1 ubiquitylation and degradation; Che-1 overexpression counteracts HIPK2-induced apoptosis. |
Co-immunoprecipitation, in vitro kinase assay, ubiquitylation assay, siRNA knockdown, apoptosis assay |
Cell death & disease |
High |
25210797
|
| 2015 |
Under stress conditions, Che-1/AATF inhibits mTOR activity by inducing expression of the mTOR inhibitors Redd1 and Deptor, and this activity is required for stress-induced autophagy. |
siRNA knockdown, gene expression analysis, Western blot, autophagy assays |
The EMBO journal |
Medium |
25770584
|
| 2015 |
Che-1/AATF directly binds p53 protein, and this interaction occurs early in DNA damage response but is lost when cells undergo apoptosis. Che-1 forms a ternary complex with p53 and Brca1. Genome-wide ChIP analysis shows that Che-1/p53 interaction results in preferential transactivation of growth-arrest p53 target genes over pro-apoptotic targets. Che-1(+/-) mice show enhanced thymocyte apoptosis after ionizing radiation. |
Co-immunoprecipitation, genome-wide ChIP-seq, heterozygous knockout mouse model, irradiation assay |
Cell death & disease |
High |
25996291
|
| 2016 |
AATF forms a salt-stable protein complex with neuroguidin (NGDN) and NOL10 (the ANN complex). All three members localize to nucleoli with mutual dependence for protein stability. The ANN complex is required for 18S rRNA maturation and nucleolar cleavage steps in the 5'ETS and ITS1 regions, supporting 40S ribosomal subunit biosynthesis. |
Immunoprecipitation (mass spectrometry), protein-protein interaction domain mapping, siRNA knockdown, rRNA processing analysis (Northern blot/pulse-chase), immunofluorescence |
Nucleic acids research |
High |
27599843
|
| 2017 |
Che-1/AATF is required for HIF-1α stabilization under hypoxia; Che-1 depletion downregulates SIAH-2 expression (E3 ubiquitin ligase that degrades PHD3, the master regulator of HIF-1α stability), thereby reducing hypoxia-responsive gene expression and affecting glucose metabolism. |
siRNA knockdown, Western blot, NMR spectroscopy (metabolic), RNA-seq, ChIP |
Journal of experimental & clinical cancer research |
Medium |
28214471
|
| 2018 |
In Kras-driven murine lung adenocarcinomas, AATF deletion delayed lung cancer formation predominantly in a p53-dependent manner, and targeting Aatf in existing tumors halted tumor progression. This identifies AATF as a key molecule sustaining proliferative tissue and tumor progression partly by inhibiting p53-driven apoptosis in vivo. |
Autochthonous Kras-driven mouse lung cancer model, dual recombinase conditional deletion, histology, survival analysis |
Oncogene |
High |
29321668
|
| 2018 |
c-Myc directly binds the Che-1/AATF promoter to regulate its expression, and Che-1 acts as a downstream effector of c-Myc. Genome-wide ChIP-seq shows overlapping genomic occupancy; RNA-seq upon depletion of either protein reveals strong overlap of controlled pathways. Che-1 depletion inhibits BCP-ALL cell proliferation. |
ChIP-seq, RNA-seq, siRNA knockdown, promoter binding assay, proliferation assay |
EMBO reports |
High |
29367285
|
| 2020 |
Che-1/AATF interacts with RNA polymerase I and the nucleolar upstream binding factor UBF, promotes RNA polymerase I-dependent transcription of rRNA genes (rDNA), and binds the rDNA promoter. Che-1 depletion reduces RNA Pol I and UBF recruitment on rDNA, decreases rDNA promoter activity and 47S pre-rRNA production, and induces abnormal nucleolar morphology. Upon DNA damage, Che-1 re-localizes from rDNA to the TP53 promoter. |
Co-immunoprecipitation (RNA Pol I, UBF), ChIP, reporter assay, siRNA knockdown, pre-rRNA Northern blot, immunofluorescence |
Nucleic acids research |
High |
32421830
|
| 2020 |
Che-1/AATF directly interacts with histones and displaces HDAC class I members from histones in multiple myeloma cells, promoting global histone acetylation and active chromatin. Che-1 depletion leads to global histone deacetylation and reduced BRD4 chromatin accumulation. Transgenic mice expressing human Che-1 in plasma cells develop multiple myeloma. |
Co-immunoprecipitation (histones), HDAC displacement assay, ChIP-seq, Western blot, transgenic mouse model |
Blood advances |
High |
33186461
|
| 2021 |
CK2 protein kinase phosphorylates Che-1/AATF at Ser316, Ser320, and Ser321. These phosphorylation events are required for Che-1/histone H3 interaction and for Che-1's pro-proliferative activity. Mutation of these serines (Che-1 3S mutant) abolishes histone H3 binding. |
In vitro kinase assay (CK2), site-directed mutagenesis, 2D gel electrophoresis, mass spectrometry, co-immunoprecipitation, proliferation assay |
Journal of experimental & clinical cancer research |
High |
34266450
|
| 2022 |
AATF/Che-1 localizes to paraspeckles via interaction with the lncRNA NEAT1_2 and directly localizes on R-loops. Depletion of Che-1 causes marked accumulation of RNA:DNA hybrids (R-loops) and triggers sustained interferon gene expression signature through failure to resolve R-loops. |
Immunoprecipitation (NEAT1 lncRNA interaction), R-loop immunofluorescence/dot blot (S9.6 antibody), siRNA knockdown, RNA-seq (IFN signature), ChIP |
The EMBO journal |
High |
35929179
|
| 2022 |
In ischemic neurons, AATF competitively interacts with nuclear apoptosis-inducing factor (AIF) and inhibits AIF from binding DNA, thereby suppressing parthanatos (AIF-mediated cell death) without affecting PAR accumulation or AIF nuclear translocation. |
Co-immunoprecipitation (AATF-AIF), OGD/R model, dMCAO/R in vivo model, DNA fragmentation assay, overexpression |
Journal of molecular neuroscience |
Medium |
36058992
|
| 2023 |
HAX1 is a novel binding partner of Che-1/AATF; both proteins colocalize extensively in mitochondria and their association is strengthened after oxidative stress. Che-1 depletion correlates with decreased HAX1 mRNA and protein levels in MCF-7 cells. |
Co-immunoprecipitation, co-localization (immunofluorescence), siRNA knockdown, Western blot |
Biochimica et biophysica acta. Molecular cell research |
Low |
37742722
|
| 2025 |
AATF interacts with XRCC4 (a core NHEJ subunit) and prevents its ubiquitin-mediated proteasomal degradation. Upon DNA damage, ATM phosphorylates AATF at Ser189, causing its dissociation from XRCC4 and rapid recruitment of XRCC4 to DNA break sites for NHEJ repair. AATF depletion or phosphorylation-deficient mutant impedes NHEJ in glioma stem-like cells. |
Co-immunoprecipitation (AATF-XRCC4), ATM kinase assay (Ser189 phosphorylation), site-directed mutagenesis, NHEJ assay, ubiquitination assay, xenograft model |
Nature communications |
High |
40436899
|
| 2017 |
Che-1/AATF interacts with subunits of the HAT module of SAGA complexes (ADA2A, ADA2B, and GCN5) in human cells, as demonstrated by co-immunoprecipitation and co-localization, with specific domains in ADA2 and GCN5 required for these interactions. |
Co-immunoprecipitation, yeast two-hybrid (domain mapping), co-localization |
PloS one |
Medium |
29232376
|
| 2003 |
The Che-1/AATF promoter is TATA-less and contains a negative feedback element: Che-1 protein binds its own promoter and represses its own transcription. |
Reporter assay, chromatin immunoprecipitation (ChIP), promoter deletion analysis |
Gene |
Medium |
14636992
|
| 2025 |
In pancreatic neuroendocrine tumors, ACSS2 activity induces histone H3/H4 hyperacetylation, which recruits AATF to co-regulate FasL transcription, specifically enhancing soluble FasL secretion. Secreted FasL triggers CD8+ T cell apoptosis via caspase-8/3 cascade, promoting immune evasion. ACSS2 and AATF act non-redundantly and synergistically in modulating FasL expression. |
ChIP, Western blot, ELISA (sFasL), co-immunoprecipitation, siRNA/overexpression, flow cytometry (T cell apoptosis) |
Advanced science |
Medium |
40791180
|