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Induction of senescence upon loss of the Ash2l subunit of histone H3K4 methyltransferase complexes (ChIP-Seq)

GSE165460 Mus musculus (mouse) ChIP-seq / ATAC-seq (genome binding and open chromatin) 20 samples Submitted 2024/08/14 Platform GPL19057
At a glance

ChIP-seq / ATAC-seq (genome binding and open chromatin) · mouse · 20 samples

What it is
ChIP-seq / ATAC-seq (genome binding and open chromatin)Where proteins bind the genome, or which regions are open and active.
Organism
Mus musculus (mouse)
Samples
20 samples: 20 samples, each with a distinct title — no replicated groupsGroups are read from the sample names, not from the paper. Check the list below.
Data you can get
A processed table (series matrix) and supplementary files from NCBI; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Paper
Loss of the Ash2l subunit of histone H3K4 methyltransferase complexes reduces chromatin accessibility at promotersScientific reports · 2022
Summary (written by the submitters)
Post-translational modifications of core histones participate in controlling the expression of genes. Methylation of lysine 4 of histone H3 (H3K4) is associated with open chromatin and gene transcription. This histone mark is catalyzed by type 2 lysine methyltransferase (KMT2) complexes. In mammals, these consist of one of 6 different KMT2 enzymes, each associated with 4 core subunits, WDR5, RBBP5, ASH2L and DPY30, which are necessary for catalytic activity.
Read the full summary ↓
The knockout of Ash2l is embryonically lethal in mice as well as in adult animals when hepatocytes or hematopoietic cells are targeted. To expand on the mechanistic understanding of Ash2l, we have used mouse embryo fibroblasts (MEFs). The knockout of Ash2l resulted in the downregulation of H3K4me3 at a large number of promoters, preferentially those associated with CpG islands, accompanied with broad repression of gene expression. The consequence in MEFs was induction of senescence concomitant with a set of down-regulated signature genes. Thus, although the loss of Ash2l in MEFs has broad and complex consequences on the transcriptional program, the biological consequences were distinct, culminating in senescence.
Published in
Loss of the Ash2l subunit of histone H3K4 methyltransferase complexes reduces chromatin accessibility at promoters
Barsoum M, Stenzel AT, Bochyńska A et al. · Scientific reports 2022 · PMID 36513698 · doi:10.1038/s41598-022-25881-0
This dataset
Download · which file do I need?

Direct links to NCBI and ENA, no account and no request form. Pick by what you want to do: take the small processed table to look, the supplementary files to re-analyse, or the original raw data to start over.

1 · Just have a look

Processed table

The series matrix: one table of values per sample as the submitters processed it. The smallest download, and it opens in Excel or R. Start here to see what the data look like.

2 · Re-analyse it

Supplementary files

The count tables and other files the authors uploaded. Take only the samples you need, or the whole study as GSE165460_RAW.tar (it can run to tens of gigabytes).

3 · Start from the raw reads

Raw sequencing reads

The original FASTQ files, straight from the sequencer, held at ENA. Large, and you align them yourself, so only choose this if you need to re-process the study from scratch.

What the files usually look like: Look for peak files (.bed, .narrowPeak) and signal tracks (.bigWig) among the supplementary files; the raw reads are on ENA.

Also filed as BioProject PRJNA694649 and SRA study SRP303163. Searching any of these in the dataset finder brings you back here.

Study design
20 samples, each with a distinct title — no replicated groups

Any grouping that defines a comparison lives in the sample characteristics, which GEO records separately from the titles.

How we read this: Read from 20 sample titles: 20 distinct titles with little repetition. These groups are guessed from the sample names, not taken from the paper, so check them against the sample list below before relying on them.

Samples in this study
Datasets on a similar topic

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Metadata from NCBI GEO, cached and refreshed periodically — the NCBI page above is authoritative. Downloads link straight to NCBI/ENA; nothing is proxied through BioTransfer.