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Pathogenic variants in the splicing factor SF1 lead to a new neurodevelopmental disorder.

GSE288121 Homo sapiens (human) RNA-seq (gene expression) 12 samples Submitted 2025/07/29 Platform GPL24676
At a glance

RNA-seq (gene expression) · human · 12 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
12 samples: 6 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
Heterozygous pathogenic variants in the splicing factor SF1 lead to a large spectrum of neurodevelopmental disordersAmerican journal of human genetics · 2025
Summary (written by the submitters)
Alternative splicing is highly prevalent in the brain, orchestrating key processes like neurogenesis and synaptogenesis, which are critical for generating the nervous system's complexity and plasticity. Dysregulation of splicing mechanisms has been increasingly implicated in neurodevelopmental disorders. Splicing factor 1 (SF1) is integral to pre-mRNA processing, facilitating early spliceosome assembly at the 3′ splice site and contributing to the regulation of alternative splicing.
Read the full summary ↓
Here, we report a newly identified neurodevelopmental disorder associated with de novo heterozygous variants in SF1, characterized by intellectual disability, dysmorphic features, and structural brain anomalies in 15 affected individuals. Functional studies in neural progenitor cells demonstrate that SF1 inhibition alters alternative splicing programs, with pronounced effects on genes involved in neuronal differentiation, synaptic transmission, and axonal guidance, processes fundamental to brain development. These findings establish SF1-related dysfunction as a novel spliceosomopathy and highlight its critical importance in neurodevelopment and human disease.
Published in
Heterozygous pathogenic variants in the splicing factor SF1 lead to a large spectrum of neurodevelopmental disorders
Bou-Rouphael J, Cospain A, Courtin T et al. · American journal of human genetics 2025 · PMID 40987292 · doi:10.1016/j.ajhg.2025.09.001
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 GSE288121_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 PRJNA1216233 and SRA study SRP560144. Searching any of these in the dataset finder brings you back here.

Study design
6 conditions, mostly in duplicate
siCTRL-1, NPC line ×2 siCTRL-2, NPC line ×2 siCTRL-3, NPC line ×2 siSF1-1, NPC line ×2 siSF1-2, NPC line ×2 siSF1-3, NPC line ×2

Supports a between-group comparison across 12 samples.

How we read this: 6 replicated groups read from 12 sample titles; they account for 12 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
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