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Pateamine A mediates RNA sequence-selective translation repression by anchoring eIF4A and DDX3 to GNG motifs

GSE243312 Homo sapiens (human) RNA-seq (gene expression) 36 samples Submitted 2024/07/08 Platform GPL20301Platform GPL21616Platform GPL26697
At a glance

RNA-seq (gene expression) · human · 36 samples

What it is
RNA-seq (gene expression)Gene activity measured by sequencing. The summary does not mention single-cell work, so this is most likely bulk: one average per sample, the usual starting point for comparing groups.
Organism
Homo sapiens (human)
Samples
36 samples: 30 distinct titles, 6 of them repeatedGroups 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
DMDA-PatA mediates RNA sequence-selective translation repression by anchoring eIF4A and DDX3 to GNG motifsNature communications · 2024
Summary (written by the submitters)
Small molecule compounds that inducespark the mRNA-selective translation repression, are attracting interesthave arisen due to their potential for expansion ofin druggable space expansion. However, only limited examples have been reported to datewere found. Here we showed that pateamine A (PatA) represses translation in an mRNA-selective manner by clamping eIF4A, a DEAD-box RNA-binding protein, on GNG motifs.
Read the full summary ↓
Through systematic comparison of multiple eIF4A inhibitors by ribosome profiling, we found that PatA has a unique mRNA selectivity in translation repression. Unbiased Bind-n-Seq revealed that PatA provides a sequence preference toward GNG motifs to eIF4A in an ATP-independent manner. This unusual RNA binding sterically hindered scanning by 40S ribosomes. In silico simulation, quantum chemical calculation, and subsequent development of an inactive PatA derivative concluded that the charge of the secondary amine on the trienyl arm determines G selectivity. Moreover, we found that DDX3, another DEAD-box protein, was an alternative target of PatA, phenocopying the effect on eIF4A. Our results provide an example of sequence-selective anchor of RNA-binding proteins and mRNA-selective inhibition of protein synthesis by a small molecule compound.
Published in
DMDA-PatA mediates RNA sequence-selective translation repression by anchoring eIF4A and DDX3 to GNG motifs
Saito H, Handa Y, Chen M et al. · Nature communications 2024 · PMID 39223140 · doi:10.1038/s41467-024-51635-9
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 GSE243312_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: For RNA-seq the counts are usually a table among the supplementary files (look for 'counts', 'expression', 'FPKM' or 'TPM' in the file name). The series matrix of a sequencing study is sometimes nearly empty.

Also filed as BioProject PRJNA1017801 and SRA study SRP460734. Searching any of these in the dataset finder brings you back here.

Study design
30 distinct titles, 6 of them repeated
ribosome profiling, 0.1 % DMSO, 30 min, ×2 ribosome profiling, 0.1 % DMSO, 15 min, ×2 RNA pulldown-Seq, 0.1 % DMSO, 30 min, ×2 RNA Bind-n-Seq, Input, ×2 RNA Bind-n-Seq, 3 μM iPr-DMDA-PatA, 90 pmol e… ×2 RNA Bind-n-Seq, 3 μM iPr-DMDA-PatA, 90 pmol D… ×2

How we read this: Read from 36 sample titles: 30 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
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