← BioTransfer GEO Dataset Finder
GEO series

Context-dependent regulation of IgH V(D)J recombination by cohesin-STAG1 and cohesin-STAG2 [ChIP-seq]

GSE295769 Mus musculus (mouse) ChIP-seq / ATAC-seq (genome binding and open chromatin) 47 samples Submitted 2026/04/22 Platform GPL24247Platform GPL34290
At a glance

ChIP-seq / ATAC-seq (genome binding and open chromatin) · mouse · 47 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
47 samples: 20 conditions, mostly in duplicateGroups 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
Context-dependent regulation of IgH V(D)J recombination by cohesin-STAG1 and cohesin-STAG2Nature communications · 2026
Summary (written by the submitters)
Cohesin-mediated loop extrusion is central to IgH V(D)J recombination in early developing B cells, driving D-to-JH rearrangements and VH-to-DJH rearrangements, with the latter step regulated by the cohesin release factor WAPL. Here, we investigate the distinct contributions of two cohesin subunits, STAG1 and STAG2, which are incorporated in the somatic cohesin variants, cohesin-STAG1 and cohesin-STAG2, respectively.
Read the full summary ↓
Using WAPL-sufficient mouse v-Abl pro-B cells to model the D-to-JH recombination stage, we show that STAG2 promotes balanced D-to-JH joining and restrains STAG1 expression. Loss of STAG2 elevates cohesin-STAG1 occupancy on chromatin, leading to premature long-range loop formation and expanded VH usage at the expense of distal DH usage. This phenotype persists in the absence of the cohesin acetyltransferase ESCO1 but requires the N-terminal YDF motif of CTCF, which protects cohesin from WAPL-mediated chromatin release. In WAPL-depleted cells modeling the VH-to-DJH recombination stage, the CTCF N-terminus is dispensable and both cohesin variants act cooperatively to establish a diverse VH repertoire. Thus, our findings uncover context-dependent and complementary roles of these two cohesin variants in shaping antibody gene diversity, and also highlight a regulatory axis between STAG1, STAG2, and CTCF in controlling long-range chromatin dynamics.
Published in
Context-dependent regulation of IgH V(D)J recombination by cohesin-STAG1 and cohesin-STAG2
Chang F, Berke-Reynolds B, Yu X et al. · Nature communications 2026 · PMID 42336833 · doi:10.1038/s41467-026-74012-0
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 GSE295769_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 PRJNA1256334 and SRA study SRP581942. Searching any of these in the dataset finder brings you back here.

Study design
20 conditions, mostly in duplicate
IP_SMC3_WT ×6 IP_STAG1_WT ×4 IP_STAG1_Stag2KO ×3 IP_STAG2_WT ×2 IP_STAG2_Stag1KO ×2 IP_STAG2_Stag2KO ×2 IP_SMC3_Stag1KO ×2 IP_SMC3_Stag2KO ×2 +12 more

Supports a between-group comparison across 47 samples.

How we read this: 20 replicated groups read from 47 sample titles; they account for 47 of them. 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

+ 7 more — browse all 47 samples with per-sample file links →

Datasets on a similar topic

Search all mouse ChIP / ATAC / CUT&Tag datasets in GEO →

Share this dataset

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.