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Profiling linkage-specific ubiquitin chain functions reveals a key role of K29-linked ubiquitylation in epigenome integrity

GSE279218 Homo sapiens (human) ChIP-seq / ATAC-seq (genome binding and open chromatin) 32 samples Submitted 2025/09/17 Platform GPL30173
At a glance

ChIP-seq / ATAC-seq (genome binding and open chromatin) · human · 32 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
Homo sapiens (human)
Samples
32 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
Functional landscape of ubiquitin linkages couples K29-linked ubiquitylation to epigenome integrityThe EMBO journal · 2025
Summary (written by the submitters)
Linkage-specific ubiquitin (Ub) chains dictate the functional outcome of many critical Ub-dependent signaling processes. However, the functions and targets of several poly-Ub topologies remain poorly understood due to a lack of tools for their specific detection and manipulation. To remedy this knowledge gap, we applied a cell-based Ub replacement strategy enabling specific, conditional abrogation of each of the seven lysine-based Ub chain types in human cells to comprehensively profile global ubiquitylation changes resulting from disabling formation of individual Ub chain types.
Read the full summary ↓
Focusing on K29-linked ubiquitylation, we found that this linkage type is enriched among chromatin-associated proteins, and that the H3K9me3 methyltransferase SUV39H1 is a prominent cellular target of this modification. We demonstrate that K29-linked ubiquitylation is essential for the proteasomal degradation of SUV39H1 despite its extensive modification by K48-linked ubiquitylation, and that K29-linked ubiquitylation of SUV39H1 is catalyzed and reversed by TRIP12 and TRABID, respectively. Importantly, preventing K29-linked ubiquitylation of SUV39H1 markedly increases H3K9me3 levels, but not other histone marks. Collectively, our Ub replacement cell line panel and datasets provide valuable resources for illuminating cellular functions of linkage-specific ubiquitylation processes and reveal a key role for K29-linked ubiquitylation in epigenome integrity.
Published in
Functional landscape of ubiquitin linkages couples K29-linked ubiquitylation to epigenome integrity
Arroyo-Gomez J, Murray MJ, Guérillon C et al. · The EMBO journal 2025 · PMID 41125851 · doi:10.1038/s44318-025-00599-7
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 GSE279218_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 PRJNA1171407 and SRA study SRP537741. Searching any of these in the dataset finder brings you back here.

Samples in this study

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