H3K9me3 chIP-seq 5 days following disruption of the SETDB1 H3K9 trimethylase with two different sgRNAs (6, and 9) or non-targeting control
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE103408 | GEO | 2017/09/06
SECONDARY ACCESSION(S): PRJNA401854
REPOSITORIES: GEO
Similar Datasets
Project description:Only a small percentage of human transcription factors (e.g. those associated with a specific differentiation program) are expressed in a given cell type. Thus, cell fate is mainly determined by cell type-specific silencing of transcription factors that drive different cellular lineages. Several histone modifications have been associated with gene silencing, including H3K27me3 and H3K9me3. We have previously shown that the two largest classes of mammalian transcription factors are marked by distinct histone modifications; homeobox genes are marked by H3K27me3 and zinc finger genes are marked by H3K9me3. Several histone methyltransferases (e.g. G9a and SETDB1) may be involved in mediating the H3K9me3 silencing mark. We have used ChIP-chip and ChIP-seq (GSE24632) to demonstrate that SETDB1, but not G9a, is associated with regions of the genome enriched for H3K9me3. A current model is that SETDB1 is recruited to specific genomic locations via interaction with the corepressor TRIM28 (KAP1), which is in turn recruited to the genome via interaction with zinc finger transcription factors that contain a Kruppel-associated box (KRAB) domain. However, specific KRAB-ZNFs that recruit TRIM28 (KAP1) and SETDB1 to the genome have not been identified. We now show that ZNF274 (a KRAB-ZNF that contains 5 C2H2 zinc finger domains), can interact with KAP1 in vitro and, using ChIP-seq, we show that ZNF274 binding sites co-localize with SETDB1, KAP1, and H3K9me3 at the 3â ends of zinc finger genes. Knockdown of ZNF274 with siRNAs reduced the levels of KAP1 and SETDB1 recruitment to the binding sites. These studies provide the first identification of a KRAB domain-containing ZNFs that is involved in recruitment of the KAP1 and SETDB1 to the human genome. This study includes the 4 ChIP-chip arrays only.
2010-11-01 | E-GEOD-24480 | biostudies-arrayexpress
Project description:Only a small percentage of human transcription factors (e.g. those associated with a specific differentiation program) are expressed in a given cell type. Thus, cell fate is mainly determined by cell type-specific silencing of transcription factors that drive different cellular lineages. Several histone modifications have been associated with gene silencing, including H3K27me3 and H3K9me3. We have previously shown that the two largest classes of mammalian transcription factors are marked by distinct histone modifications; homeobox genes are marked by H3K27me3 and zinc finger genes are marked by H3K9me3. Several histone methyltransferases (e.g. G9a and SETDB1) may be involved in mediating the H3K9me3 silencing mark. We have used ChIP-chip (GSE24480) and ChIP-seq to demonstrate that SETDB1, but not G9a, is associated with regions of the genome enriched for H3K9me3. A current model is that SETDB1 is recruited to specific genomic locations via interaction with the corepressor TRIM28 (KAP1), which is in turn recruited to the genome via interaction with zinc finger transcription factors that contain a Kruppel-associated box (KRAB) domain. However, specific KRAB-ZNFs that recruit TRIM28 (KAP1) and SETDB1 to the genome have not been identified. We now show that ZNF274 (a KRAB-ZNF that contains 5 C2H2 zinc finger domains), can interact with KAP1 in vitro and, using ChIP-seq, we show that ZNF274 binding sites co-localize with SETDB1, KAP1, and H3K9me3 at the 3’ ends of zinc finger genes. Knockdown of ZNF274 with siRNAs reduced the levels of KAP1 and SETDB1 recruitment to the binding sites. These studies provide the first identification of a KRAB domain-containing ZNFs that is involved in recruitment of the KAP1 and SETDB1 to the human genome. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf 7 total ChIP-seq datasets; 4 ZNF274 datasets done in duplicate from 4 different cell lines; 1 KAP1 duplicate dataset done in duplicate from K562 cells; 1 SetDB1 duplicate dataset from K562 cells; 1 H3K9me3 duplicate dataset from K562 cells
2010-11-15 | E-GEOD-24632 | biostudies-arrayexpress
Project description:Setdb1 is an epigenetic factors catalyzing modification of H3K9me3. Expression of its gene is localized to embryonic neural cells during vertebrate embryogenesis, suggesting its role in regulating neural stemness. The project is to identify the interaction partners of Setdb1, by which Setdb1 regulates neural stemness in neural stem cells.
2022-08-12 | PXD030453 | Pride
Project description:H3K9me3 chIP-seq 5 days following disruption of the SETDB1 H3K9 trimethylase with two different sgRNAs (6, and 9) or non-targeting control
| PRJNA401854 | ENA
Project description:SETDB1 disruption leads to an increase in the expression of transposable elements as determined by our standard RNAseq, where bidirectional transcription has been reported. We repeated RNA seq on our samples with a stranded prep to determine whether bidirectional transcription occurs of transposable elements following depletion of SETDB1 in THP-1 AML Cells Methods: THP-1 cells were treated with two different SETDB1 sgRNAs (6, and 9) or Non-targeting control sgRNA (NTC) for 4 and 7 days. RNA was isolated and prepared for RNAseq with Qiagen RNeasy kits. Results: Consensus sequences for elements for upregulated TEs were downloaded from the Dfam database (Hubley et al., 2016). Stranded RNA-seq data was then aligned to consensus sequences using BWA-MEM and quantified using HTseq-count(Anders et al., 2015; Li, 2013). Reads were visualized using the IGV genome browser, using a custom pseudogenome that was generated from the Dfam consensus sequences (Robinson et al., 2011; Thorvaldsdottir et al., 2013). Conclusions: Our data determined that following the disruption of SETDB1, there is increased bidirectional transcription over a subset of transposable elements.
2017-09-06 | GSE103410 | GEO
Project description:Purpose: To determine how loss of SETDB1 effects gene expression in THP-1 AML cells. Methods: THP-1 cells were treated with two different SETDB1 sgRNAs (6, and 9) or Non-targeting control sgRNA (NTC) for 4 and 7 days. RNA was isolated and prepared for RNAseq with Qiagen RNeasy kits. Results: Using an optimized data analysis workflow, we mapped 23 million or more sequence reads per sample to the human genome (GRCh38) with GSNAP for obtaining standard gene expression measurements. Since SETDB1 is also know to regulate repetitive elements we also mapped sequences to a pseudogenome containing tranposable elements from hg19 repeatmasker annotations using RepEnrich and following the pipeline published on GitHub (https://github.com/nskvir/RepEnrich). Conclusions: Our data determined that immediately following the disruption of SETDB1, a strong type I Interferon response can be observed at day 4. In addition, many repetitive elements are also significanly induced, including L1 LINEs, Endogenous Retroviruses, and Satellite repeats.
2017-09-06 | GSE103409 | GEO
Project description:Only a small percentage of human transcription factors (e.g. those associated with a specific differentiation program) are expressed in a given cell type. Thus, cell fate is mainly determined by cell type-specific silencing of transcription factors that drive different cellular lineages. Several histone modifications have been associated with gene silencing, including H3K27me3 and H3K9me3. We have previously shown that the two largest classes of mammalian transcription factors are marked by distinct histone modifications; homeobox genes are marked by H3K27me3 and zinc finger genes are marked by H3K9me3. Several histone methyltransferases (e.g. G9a and SETDB1) may be involved in mediating the H3K9me3 silencing mark. We have used ChIP-chip and ChIP-seq (GSE24632) to demonstrate that SETDB1, but not G9a, is associated with regions of the genome enriched for H3K9me3. A current model is that SETDB1 is recruited to specific genomic locations via interaction with the corepressor TRIM28 (KAP1), which is in turn recruited to the genome via interaction with zinc finger transcription factors that contain a Kruppel-associated box (KRAB) domain. However, specific KRAB-ZNFs that recruit TRIM28 (KAP1) and SETDB1 to the genome have not been identified. We now show that ZNF274 (a KRAB-ZNF that contains 5 C2H2 zinc finger domains), can interact with KAP1 in vitro and, using ChIP-seq, we show that ZNF274 binding sites co-localize with SETDB1, KAP1, and H3K9me3 at the 3’ ends of zinc finger genes. Knockdown of ZNF274 with siRNAs reduced the levels of KAP1 and SETDB1 recruitment to the binding sites. These studies provide the first identification of a KRAB domain-containing ZNFs that is involved in recruitment of the KAP1 and SETDB1 to the human genome.
2010-11-01 | GSE24480 | GEO
Project description:Purpose: The aim of this study is (1) to identify the chromatin occupancy of the epigenetic regulator Setdb1 in mouse embryonic fibroblasts (MEF); (2) to profile key epigenetic marks H3K9me2, H3K9me3 and H3K27me3; utilizing wildtype cells with nonsilencing shRNA mediated knockdown and Setdb1 geneTrap heterozygous cells with Setdb1 shRNA mediated knockdown. Methods: Chromatin immunoprecipitation for Setdb1, H3K9me2, H3K9me3 and H3K27me3 was performed essentially as in (Nelson et al. 2006). Briefly, nuclei were isolated from formaldehyde crosslinked MEFs and chromatin was fragmented by sonication. Chromatin immunoprecipitation was performed with corresponding antibodies for Setdb1, H3K9me2, H3K9me3 and H3K27me3. DNA was extracted from the immunoprecipitated fraction following reverse-crosslinking. Isolated DNA was used to generate sequencing libraries with Illumina's TruSeq DNA Sample Preparation Kit according to manufacturer's instruction. Libraries were pooled and sequenced on the Illumina HiSeq 2000 platform for 100 bp single-end reads. Image analysis was performed in real time by the HiSeq Control Software (HCS) v1.4.8 and Real Time Analysis (RTA) v1.12.4.2, running on the instrument computer. Real-time base calling on the HiSeq instrument computer was performed with the RTA software. Illumina CASAVA1.8 pipeline was used to generate the sequence data. Chromatin occupancy of the epigenetic regulator Setdb1, H3K9me2, H3K9me3 and H3K27me3 in mouse embryonic fibroblasts (MEFs) with wildtype MEFs and nonsilencing shRNA mediated knockdown or Setdb1 geneTrap heterozygous MEFs with Setdb1 shRNA mediated knockdown was determined by Setdb1, H3K9me2, H3K9me3 and H3K27me3 ChIP-seq, respectively.
2016-05-18 | E-GEOD-66522 | biostudies-arrayexpress
Project description:Only a small percentage of human transcription factors (e.g. those associated with a specific differentiation program) are expressed in a given cell type. Thus, cell fate is mainly determined by cell type-specific silencing of transcription factors that drive different cellular lineages. Several histone modifications have been associated with gene silencing, including H3K27me3 and H3K9me3. We have previously shown that the two largest classes of mammalian transcription factors are marked by distinct histone modifications; homeobox genes are marked by H3K27me3 and zinc finger genes are marked by H3K9me3. Several histone methyltransferases (e.g. G9a and SETDB1) may be involved in mediating the H3K9me3 silencing mark. We have used ChIP-chip (GSE24480) and ChIP-seq to demonstrate that SETDB1, but not G9a, is associated with regions of the genome enriched for H3K9me3. A current model is that SETDB1 is recruited to specific genomic locations via interaction with the corepressor TRIM28 (KAP1), which is in turn recruited to the genome via interaction with zinc finger transcription factors that contain a Kruppel-associated box (KRAB) domain. However, specific KRAB-ZNFs that recruit TRIM28 (KAP1) and SETDB1 to the genome have not been identified. We now show that ZNF274 (a KRAB-ZNF that contains 5 C2H2 zinc finger domains), can interact with KAP1 in vitro and, using ChIP-seq, we show that ZNF274 binding sites co-localize with SETDB1, KAP1, and H3K9me3 at the 3’ ends of zinc finger genes. Knockdown of ZNF274 with siRNAs reduced the levels of KAP1 and SETDB1 recruitment to the binding sites. These studies provide the first identification of a KRAB domain-containing ZNFs that is involved in recruitment of the KAP1 and SETDB1 to the human genome. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf
2010-11-15 | GSE24632 | GEO
Project description:We performed ChIP-seq to measure H3K9me3 levels in wild-type HeLa cells and HeLa cells lacking TASOR, MPP8, periphilin and SETDB1 generated through CRISPR/Cas9-mediated gene disruption.
2015-05-28 | GSE63116 | GEO