ArticleEpilepsia open2025
PAK3 pathogenic variant associated with sleep-related hypermotor epilepsy in a family with parental mosaicism.
Article in Epilepsia open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- PAK3 pathogenic variant associated with sleep-related hypermotor epilepsy in a family with parental mosaicism.Epilepsia open · 2025Article
- NovelFrontiers in neuroscience · 2025Article
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Authors and funding
13 authors.
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Abstract
Protein-activated kinases mediate spine morphogenesis and synaptic plasticity. PAK3 is part of the p21-activated kinases (PAKs) family of Ras-signaling serine/threonine kinases. Pathogenic variants in the X-linked gene PAK3 have been described in patients with neurodevelopmental syndromes. We analyzed an Italian family with sleep-related hypermotor epilepsy, intellectual disability, psychiatric and behavioral problems, and dysmorphic facial features. A novel PAK3 c.342_344del (p.Lys114del) inframe deletion was detected in the family. Protein structure analysis supported deleterious impact of p.Lys114 deletion through loss or partial loss of autoinhibition of PAK3 protein kinase activity. The male proband had drug-resistant hypermotor seizures and moderate intellectual disability. His brother had drug-responsive hypermotor seizures and mild intellectual disability. Both brothers were hemizygous and had psychiatric and behavioral problems as well as dysmorphic facial features. Their mother had never had seizures but was shown to be mosaic for the PAK3 pathogenic variant. She had normal intellect but did have short stature and dysmorphic facial features similar to her sons. This is the first reported association of a PAK3 pathogenic variant with sleep-related hypermotor epilepsy. PAK3 testing should be considered in families with suspected X-linked sleep-related hypermotor epilepsy and intellectual disability, including for mosaicism in mildly affected females. PLAIN LANGUAGE SUMMARY: We studied an Italian family with sleep-related hypermotor epilepsy, intellectual disability, psychiatric and behavioral problems, and dysmorphic facial features. A novel PAK3 c.342_344del (p.Lys114del) inframe deletion was detected in the family. Protein structure analysis supported deleterious impact of p.Lys114 deletion through loss or partial loss of autoinhibition of PAK3 protein kinase activity. This is the first reported association of a PAK3 pathogenic variant with sleep-related hypermotor epilepsy. PAK3 testing should be considered in families with suspected X-linked sleep-related hypermotor epilepsy and intellectual disability, including for mosaicism in mildly affected females.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.