Genetic variants in Rps4x cause intellectual disability with dysmorphic features, microcephaly, and autism
Scientists identified a new genetic cause of intellectual disability, enabling earlier diagnosis and family counseling.
Six individuals from multiple cohorts (including the UK 100,000 Genomes Project) with RPS4X missense variants were identified with a new X-linked intellectual disability syndrome featuring microcephaly, dysmorphic features, and autism. Functional studies in patient fibroblasts and zebrafish confirm pathogenicity, establishing RPS4X as a new XLID gene and expanding ribosomal involvement in intellectual disability.
What the study was
- Study design
- Genetic case series with functional validation (patient fibroblasts + zebrafish model)
- Population
- Male patients with X-linked intellectual disability (6 individuals identified across multiple cohorts including 100,000 Genomes Project)
- Sample size
- 6
- Category
- Genomics/Precision Medicine
- Maturity
- Exploratory
- Journal
- NPJ Genomic Medicine
Why it surfaced
Novel XLID gene discovery with functional validation; rare disease with high unmet need (no existing treatments). Multi-cohort confirmation including 100,000 Genomes Project.
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