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A streamlined protocol and analysis pipeline for CUT&RUN chromatin profiling

ABSTRACT: Over the past two decades, the dominant technology for chromatin profiling has been chromatin immunoprecipitation (ChIP), in which cellular components are solubilized to fragment chromatin, and an antibody is added to precipitate a DNA/protein complex of interest. We previously described a novel alternative to ChIP, Cleavage Under Targets & Release Using Nuclease (CUT&RUN), in which the antibody is added to permeabilized cells followed by binding of a Protein A-Micrococcal Nuclease (pA/MNase) fusion protein to the antibody (PMID 29651053). Upon activation of tethered MNase, the bound complex is excised and released into the supernatant for DNA extraction and sequencing. Here we introduce four extensions to CUT&RUN: 1) a hybrid Protein A-Protein G-MNase construct that allows simplified purification using a commercial kit; 2) a modified digestion protocol that prevents release of the enzyme and so minimizes artifactual cleavage of accessible DNA; 3) a calibration strategy based on carryover of E. coli DNA introduced with the fusion protein; and 4) a novel peak-calling strategy that is customized for the low-background profiles obtained using CUT&RUN. These new features, coupled with the previously described low-cost, high efficiency, high reproducibility and high-throughput capability of CUT&RUN make it the method of choice for routine epigenomic profiling.

ORGANISM(S): Homo sapiens

PROVIDER: GSE126612 | GEO | 2019/06/24

REPOSITORIES: GEO

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Targeted in situ genome-wide profiling with high efficiency for low cell numbers

Project description:Cleavage Under Targets and Release Using Nuclease (CUT&RUN) is an epigenomic profiling strategy in which antibody-targeted controlled cleavage by micrococcal nuclease releases specific protein-DNA complexes into the supernatant for paired-end DNA sequencing. As only the targeted fragments enter into solution, and the vast majority of DNA is left behind, CUT&RUN has exceptionally low background levels. CUT&RUN outperforms the most widely- used Chromatin Immunoprecipitation (ChIP) protocols in resolution, signal-to-noise, and depth of sequencing required. In contrast to ChIP, CUT&RUN is free of solubility and DNA accessibility artifacts and has been used to profile insoluble chromatin and to detect long-range 3D contacts without cross-linking. Here we present an improved CUT&RUN protocol that does not require isolation of nuclei and provides high-quality data starting with only 100 cells for a histone modification and 1000 cells for a transcription factor. From cells to purified DNA CUT&RUN requires less than a day at the lab bench and requires no special skills.

2018-03-21 | GSE104550 | GEO

The gene regulatory landscape of kidney organoid differentiation revealed by single nucleus multiomic analyses [CUT&RUN]

Project description:We performed cleavage under targets and release using nuclease (CUT&RUN) sequencing to characterize ATAC peaks identified by snATAC-seq.

2023-04-28 | GSE213150 | GEO

Identification of TFAP2A and MITF binding sites in the melanoma cell line SK-MEL-28

Project description:TFAP2A and MITF binding sites were identified in SK-MEL-28 cell lines using Cleavage Under Targets and Release Using Nuclease (CUT&RUN).

2021-02-08 | GSE153020 | GEO

Genome-wide profiling of transcription factor-DNA binding interactions in Candida albicans: a comprehensive CUT&RUN method and data analysis workflow

Project description:Regulatory transcription factors control many important biological processes including cellular differentiation, responses to environmental perturbations and stresses, and host-pathogen interactions. Determining the genome-wide binding of regulatory transcription factors to DNA is essential to understanding the function of transcription factors in these often complex biological processes. Cleavage Under Targets and Release Using Nuclease (CUT&RUN) is a modern method for genome-wide mapping of in vivo protein-DNA binding interactions that is an attractive alternative to the traditional and widely used chromatin immunoprecipitation followed by sequencing (ChIP-seq) method. CUT&RUN is amenable to a higher throughput experimental setup and has a substantially higher dynamic range with lower per-sample sequencing costs compared to ChIP-seq. Here, we describe a comprehensive CUT&RUN protocol and accompanying data analysis workflow that is tailored for genome-wide analysis of transcription factor-DNA binding interactions in the human fungal pathogen Candida albicans. This detailed protocol describes all necessary experimental procedures, from epitope tagging of transcription factor coding genes, to library preparation for sequencing; additionally, it includes our customized computational workflow for CUT&RUN data analysis.

2022-07-15 | GSE193803 | GEO

Areas of H3K27 tri-methylation in CD8+ T cells from the spleens of LCMV-Armstrong or LCMV-Clone 13 infected mice

Project description:The profiles of H3K27 tri-methylation in CD8+ T cells from LCMV-Armstrong and LCMV-Clone 13 infected mice are known to be distinct from one another. We used CUT&RUN (Cleavage Under Targets and Release Using Nuclease) to analyze these differences in splenic CD8+ T cells of these two infection conditions.

2023-01-04 | GSE213467 | GEO

Integrative Low-input Transcriptomic and Cistromic Analyses Identify CREB Target Genes in Cystic Epithelial Cells [RNA-Seq]

Project description:Transcription factors (TFs) play crucial roles in kidney development and disease by recognizing specific DNA sequences to control gene expression programs. The kidney’s cellular heterogeneity poses substantial challenges to identifying the genomic binding sites and direct target genes of TFs in vivo. We apply the CUT&RUN (cleavage under targets and release using nuclease) technique, together with transcriptomic analysis, to identify cAMP-response element-binding protein (CREB) target genes in cystic epithelial cells of autosomal dominant polycystic kidney disease (ADPKD). Our results reveal that CREB binds to and activates ribosomal biogenesis genes, and that inhibition of CREB retards cyst growth in ADPKD mouse models. Our findings demonstrate that CUT&RUN is a powerful method for genome-scale profiling and identifying direct targets of TFs from small numbers of specific kidney cells.

2022-01-01 | GSE165417 | GEO

Integrative Low-input Transcriptomic and Cistromic Analyses Identify CREB Target Genes in Cystic Epithelial Cells [CUT&RUN, ChIP-Seq]

2022-01-01 | GSE165416 | GEO

Mapping out genome wide binding sites of Prox1 by CUT&RUN approach in mouse cochlea

Project description:The homeobox transcription factor Prox1 is critical for organogenesis including brain, retina, liver and pancreas and lymphatic system. Prox1 is transiently expressed in mouse cochlear hair cells (HCs) and supporting cells (SCs), however, it remains elusive about its in vivo DNA binding site and roles during cochlear development. Here, by using fresh cochlear tissues and Prox1 antibody, we firstly mapped out the genome-wide binding sites of Prox1 via Cleavage Under Targets and Release Using Nuclease (CUT&RUN). Gene function enrichment analysis suggests several potential functions of Prox1, one of which is regulating cell cycle progression. Secondly, to validate our CUT&RUN data, we further performed in vivo prox1 gain-of-function studies through genetic approaches. Onset of ectopic Prox1 at early embryonic otocyst leads to shorter cochlea with density of HCs and SCs distribution, suggesting a precocious cell cycle exit of cochlear sensory progenitor cells. These findings highlight the power of CUT&RUN in mapping DNA binding sites even in tissues (i.e. cochlea) with rare cells, as well as providing the first genetic evidence to support roles of Prox1 in regulating progenitor pools of cochlear progenitors.

2021-08-06 | GSE146191 | GEO

CUT&RUN of TAF4b and H3K4me3 in E16.5 oocytes

Project description:Research has shown that Taf4b-deficient female mice display excessive perinatal germ cell death, delayed germ cell cyst breakdown, and increased chromosome asynapsis. Therefore, we hypothesized that TAF4b, as part of TFIID, regulates oogenesis and meiotic gene programs. However, the direct targets of TAF4b have not been thoroughly explored. Therefore, we performed Cleavage Under Targets and Release Using Nuclease (CUT&RUN) in E16.5 mouse oocytes.

2022-01-25 | GSE186991 | GEO

Cut&Run in Drosophila melanogaster control, mutant and knockdown ovaries

Project description:H3K27me3 profiles using Cleavage under targets and Release using nuclease (Cut&Run) in control and KD Drosophila melanogaster ovaries. We examined the impact on chromatin profiles in Drosophila melanogaster ovaries in which the lid, the Sin3a, the Snr1 or the mod(mdg4) gene have been selectively knocked down by tissue-specific shRNA expression. We additionally explored H3K27me3 and H3K9me3 in control and dhd mutant ovaries either carrying or not a transgene.

2021-12-10 | GSE174250 | GEO

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