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ABSTRACT: Integrating RNA-seq and assay for transposase-accessible chromatin by sequencing (ATAC-seq) predicts functionally-relevant chromatin regions

PROVIDER: PRJNA730574 | ENA |

REPOSITORIES: ENA

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	SRR14571948.fastq.gz	Fastqsanger.gz
	SRR14571949.fastq.gz	Fastqsanger.gz
	SRR14571950.fastq.gz	Fastqsanger.gz

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Integrating RNA-seq and assay for transposase-accessible chromatin by sequencing (ATAC-seq) predicts functionally-relevant chromatin regions

Project description:Gene regulation is critical for proper cellular function. Next-generation sequencing technology has revealed the presence of regulatory networks that regulate gene expression and essential cellular functions. Studies investigating the epigenome have begun to uncover the complex mechanisms regulating transcription. Assay for transposase-accessible chromatin by sequencing (ATAC-seq) is quickly becoming the assay of choice for epigenomic investigations. Integrating epigenomic and transcriptomic data has the potential to reveal the chromatin-mediated mechanisms regulating transcription. However, integrating these two data types remains challenging. We used the insulin signaling pathway as a model to investigate chromatin regions and gene expression changes using ATAC- and RNA-seq in insulin-treated Drosophila S2 cells. We show that insulin causes widespread changes in chromatin accessibility and gene expression. Then, we attempted to integrate ATAC- and RNA-seq data to predict functionally-relevant chromatin regions that control the transcriptional response to insulin. We show that using differential chromatin accessibility can predict functionally-relevant genome regions, but that stratifying differentially-accessible chromatin regions by annotated feature type provides a better prediction of whether a chromatin region regulates gene expression. In particular, our data demonstrate a strong correlation between chromatin regions annotated to distal promoters (1-2 kb from the transcription start site). To test this prediction, we cloned candidate distal promoter regions upstream of luciferase and validated the functional relevance of these chromatin regions. Our data show that distal promoter regions selected by correlations with RNA-seq are more likely to control gene expression. Thus, correlating ATAC- and RNA-seq data can home in on functionally-relevant chromatin regions

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Project description:We performed the assay for transposase-accessible chromatin using sequencing (ATAC-seq) using 88 tissue samples to profile open chromatin regions in the cattle genome.

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Project description:We performed the assay for transposase-accessible chromatin using sequencing (ATAC-seq) on a liver sample collected from one Holstein Friesian healthy male at one month of age to profile open chromatin regions genome-wide to identify putative regulatory elements related to phenotype of interest.

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Project description:We report the Assay for Transposase-Accessible Chromatin with sequencing (ATAC-seq) for high-throughput profiling of accessible chromatin regions after cold treatment in Vitis amurensis

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Project description:The assay for transposase-accessible chromatin using sequencing (ATAC-seq) is widely used to identify regulatory regions throughout the genome. However, only a few studies have been done at the single cell level (scATAC-seq) due to technical difficulties. Here we developed a simple and robust plate-based scATAC-seq method, combining upfront bulk tagmentation with single-nuclei sorting, to investigate open chromatin regions. We applied this method on mouse splenocytes and unbiasedly revealed key regulatory regions and transcription factors that define each cell (sub)type.

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