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Chemoproteomic profiling unveils binding and functional diversity of endogenous proteins that interact with endogenous triplex DNA

GSE257561 Homo sapiens (human) ChIP-seq / ATAC-seq (genome binding and open chromatin) 13 samples Submitted 2024/07/17 Platform GPL24676
At a glance

ChIP-seq / ATAC-seq (genome binding and open chromatin) · human · 13 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
13 samples: 5 conditions, mostly in triplicateGroups 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
Chemoproteomic profiling unveils binding and functional diversity of endogenous proteins that interact with endogenous triplex DNANature chemistry · 2024
Summary (written by the submitters)
Triplex DNA structures, formed by a third DNA strand wrapped around the major groove of double helix, are key molecular regulators and genomic threats that are pharmacologically exploitable. However, the regulatory network governing triplex DNA dynamics are poorly understood. Here we performed chemoproteomic profiling of triplex DNA interactome in live cells to address this knowledge gap.
Read the full summary ↓
We developed and validated a chemical probe that exhibits exceptional specificity for recognizing triplex DNA structures. By employing a co-binding-mediated proximity capture strategy, we enriched triplex DNA interactome for quantitative proteomics analysis. This enabled the identification of a comprehensive list of triplex DNA interacting proteins, characterized by diverse binding properties and regulatory mechanisms in native chromatin context. As a demonstration, we further validated DDX3X as the first ATP-independent helicase capable of resolving triplex DNA structures with 5' overhangs on the third DNA strand to prevent triplex-DNA-induced DNA damages. Overall, our triplex DNA interactome offers a valuable resource for investigating the biology of triplex DNA in both health and disease.
Published in
Chemoproteomic profiling unveils binding and functional diversity of endogenous proteins that interact with endogenous triplex DNA
Xu H, Ye J, Zhang KX et al. · Nature chemistry 2024 · PMID 39223307 · doi:10.1038/s41557-024-01609-7
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 GSE257561_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 PRJNA1080212 and SRA study SRP491608. Searching any of these in the dataset finder brings you back here.

Study design
5 conditions, mostly in triplicate
HeLa, DDX3X, CUT&Tag, ×3 HeLa, gammaH2AX, scrambled siRNA, CUT&Tag, ×3 HeLa, gammaH2AX, siDDX3X, CUT&Tag, ×3 HeLa, DNMT1, DMSO, CUT&Tag, ×2 HeLa, DNMT1, BQQ4h, CUT&Tag, ×2

Supports a between-group comparison across 13 samples.

How we read this: 5 replicated groups read from 13 sample titles; they account for 13 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
Datasets on a similar topic

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