Similar Datasets
Project description:By a robust unbiased ChIP-seq approach, we demonstrated that CRISPR/Cas9 had crRNA-specific off-target binding activities in human genome. However, most of those binding off-targets could not be efficiently cleaved both in vivo and in vitro which suggested the cleavage off-target activity of CRISPR/Cas9 in human genome is very limited. We provided a valuable tool to further investigate the molecular mechanism of CRISPR/Cas9 and to optimize its in vivo targeting sgRNA binding sites were identified with ChipSeq by using GFP antibody (there are 2 replicates for egfa-t1 sgRNA,emx1 sgRNA and control without sgRNA in Hek293T cells, one egfa-t1 sgRNA,emx1 sgRNA and control without sgRNA in HeLaS3 cells)
2014-06-18 | E-GEOD-58511 | biostudies-arrayexpress
Project description:Estrogen Receptor a (ERa) bindning to DNA was profiled by ChIP-seq in MCF-7 and T47D cells transduced with either control sgRNA, or sgRNA targeting a specific enhancer region (enhancer588). ERa in MCF-7 and T47D control or enhancer588-targeted cells
2015-12-14 | E-GEOD-75779 | biostudies-arrayexpress
Project description:Analysis of Cas9/sgRNA mutagenic activity at a variety of loci in zebrafish. Each loci has a control, where no Cas9/sgRNA were injected. This is amplicon sequencing with Illumina, after PCR amplification. Data was processed with ampliCan R package version 1.1.1.
2017-12-25 | E-MTAB-6310 | biostudies-arrayexpress
Project description:Analysis of Cas9/sgRNA mutagenic activity at a variety of loci in zebrafish. Each loci has a control, where no Cas9/sgRNA were injected. This is amplicon sequencing with Illumina, after PCR amplification. Data was processed with ampliCan R package version 1.1.1.
2017-12-15 | E-MTAB-6355 | biostudies-arrayexpress
Project description:Human cancer cell lines indicated in the file names, with stably overexpressed Cas9 nuclease, were transfected with (C) control sgRNA or (P) TP53-specific sgRNA, (K) KRAS-specific sgRNA or (M) CMYC-specific sgRNA. Each experiment was done by transfection of sgRNA pair - control (C) or causing a NHEJ-mediated knock-out of the target genes (P, K or M). Samples for proteomics were collected 48h post sgRNA transfection without selection, in three biological replicates each (indicated with numbers 1-3). In cell lines with three activated oncogenes, three separate oncogene-targeting transfections were carried out.
2024-10-17 | PXD037398 | Pride
Project description:RNA-guided genome editing with the CRISPR-Cas9 system has great potential for basic and clinical research, but the determinants of targeting specificity and the extent of off-target cleavage remain insufficiently understood. Using chromatin immunoprecipitation and high-throughput sequencing (ChIP-seq), we mapped genome-wide binding sites of catalytically inactive Cas9 (dCas9) in HEK293T cells, in combination with 12 different single guide RNAs (sgRNAs). The number of off-target sites bound by dCas9 varied from ~10 to >1,000 depending on the sgRNA. Analysis of off-target binding sites showed the importance of the PAM-proximal region of the sgRNA guiding sequence and that dCas9 binding sites are enriched in open chromatin regions. When targeted with catalytically active Cas9, some off-target binding sites had indels above background levels in a region around the ChIP-seq peak, but generally at lower rates than the on-target sites. Our results elucidate major determinants of Cas9 targeting, and we show that ChIP-seq allows unbiased detection of Cas9 binding sites genome-wide 1.sgRNA1-6 binding sites were identified with ChipSeq by using HA antibody (there are 2 replicates for sgRNA1-3, one sample for sgRNA4-6,one control without sgRNA) 2.PCR products which amplifies " off-target genomic sites" were deep sequenced in the presence of WT Cas9+sgRNA or WT Cas9 alone( unique adaptor was used for each sgRNA and mixed for multiplex run)
2014-05-18 | E-GEOD-55887 | biostudies-arrayexpress
Project description:Genome-wide CRISPR-Cas9 knockout screen using TKOv1 sgRNA library performed in isogenic RBM10-proficient and RBM10-deficient HCC827 cells.
2024-03-01 | E-MTAB-13626 | biostudies-arrayexpress
Project description:Genome-wide CRISPR-Cas9 knockout screen using TKOv1 sgRNA library was performed in isogenic RBM10-proficient and RBM10-deficient HCC827 cells.
2023-03-04 | E-MTAB-12724 | biostudies-arrayexpress
Project description:mRNA-seq for expression profiling of Myc and Yap1 activated mouse lung tumors and controls. 4 cohorts of lung tumors induced through nasal instillation of Cre/sgRNA(MS2)-encoding lentivirus in mice carrying conditional P53 loss (P53 F/F), oncogenic Kras (Kras LSL-G12D/+), and CRISPRa/SAM construct (Rosa26(LSL-SAM) or YFP reporter (Rosa26(LSL-YFP): 4 P53(L/L), Kras(LSL-G12D/+), Rosa26(LSL-SAM) / lenti(CMV-Cre/U6-sgRNA(Myc) (PPKS/M); 4 P53(L/L), Kras(LSL-G12D/+), Rosa26(LSL-SAM) / lenti(CMV-Cre/U6-sgRNA(Yap1) (PPKS/Y); 4 P53(L/L), Kras(LSL-G12D/+), Rosa26(LSL-SAM) / lenti(CMV-Cre/U6-sgRNA(non-targeted) (PPKS/NT); 4 P53(L/L), Kras(LSL-G12D/+), Rosa26(LSL-YFP) / lenti(CMV-Cre/U6-sgRNA(non-targeted) (PPKY/NT)
2022-08-30 | E-MTAB-11122 | biostudies-arrayexpress
Project description:The success of targeted therapies hinges on our ability to understand the molecular and cellular mechanism of action of these agents. Here we modify various BET bromodomain inhibitors, an exemplar novel targeted therapy, to create functionally conserved compounds that are amenable to click-chemistry and can be used as molecular probes in vitro and in vivo. Using click-proteomics and click-sequencing we provide new mechanistic insights to explain the gene regulatory function of BRD4 and the transcriptional changes invoked by BET inhibitors. In mouse models of acute leukaemia, we use high resolution microscopy and flow cytometry to highlight the underappreciated heterogeneity of drug activity within tumour cells located in different tissue compartments. We also demonstrate the differential distribution and effects of the drug in normal and malignant cells in vivo. These data provide critical insights that reveal the cellular and molecular details for the efficacy and limitations of these agents. This study provides a framework for the pre-clinical assessment of other conventional and targeted therapies.
2017-07-13 | GSE88747 | GEO