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Auto-inhibition of PRC2 by the broadly expressed long isoform of AEBP2.

GSE217538 Mus musculus (mouse) ChIP-seq / ATAC-seq (genome binding and open chromatin) 59 samples Submitted 2025/09/16 Platform GPL19057Platform GPL34290Platform GPL30172
At a glance

ChIP-seq / ATAC-seq (genome binding and open chromatin) · mouse · 59 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
59 samples
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
Auto-inhibition of PRC2 by the broadly expressed long isoform of AEBP2The EMBO journal · 2025
Summary (written by the submitters)
Polycomb Repressive Complex 2 (PRC2) is an essential chromatin regulator responsible for mono-, di- and tri- methylating H3K27. Control of PRC2 activity is a critical process in development and disease. While PRC2 is inhibited in germinal cells, no inhibitory cofactor has been identified in somatic cells. Here we show that the alternative isoforms of its accessory subunit AEBP2, namely AEBP2 S (short) and AEBP2L (long), perform opposite functions in modulating PRC2 activity.
Read the full summary ↓
While AEBP2S is predominantly expressed during early embryogenesis, AEBP2L is expressed throughout embryogenesis and adulthood. AEBP2L inhibits both DNA binding by PRC2 and its histone methyltransferase activity in vitro and impairs PRC2 binding to target genes in embryonic stem cells. In contrast, AEBP2S promotes the DNA-binding activity of PRC2 and is essential for de novo repression of target genes during the transition from naïve to primed pluripotency. Mechanistically, through high-resolution Cryo-EM and mutagenesis, we show that the recently evolved, negatively charged N-terminal region of AEBP2L inhibits PRC2. We propose a model in which the N-terminus of AEBP2L arose in vertebrates to restrain PRC2 activity in somatic cells.
Published in
Auto-inhibition of PRC2 by the broadly expressed long isoform of AEBP2
Mucha M, Lai Z, McKenzie NJ et al. · The EMBO journal 2025 · PMID 41168462 · doi:10.1038/s44318-025-00616-9
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 GSE217538_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 PRJNA899502 and SRA study SRP406854. Searching any of these in the dataset finder brings you back here.

Samples in this study

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+ 59 more — browse all 59 samples with per-sample file links →

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