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- Title
Recurrent ATP1A1 variant Gly903Arg causes developmental delay, intellectual disability, and autism.
- Authors
Dohrn, Maike F.; Bademci, Guney; Rebelo, Adriana P.; Jeanne, Médéric; Borja, Nicholas A.; Beijer, Danique; Danzi, Matt C.; Bivona, Stephanie A.; Gueguen, Paul; Zafeer, Mohammad F.; Tekin, Mustafa; Züchner, Stephan; Acosta, Maria T.; Adams, David R.; Afzali, Ben; Allworth, Aimee; Alvarez, Raquel L.; Alvey, Justin; Andrews, Ashley; Ashley, Euan A.
- Abstract
ATP1A1 encodes a sodium‐potassium ATPase that has been linked to several neurological diseases. Using exome and genome sequencing, we identified the heterozygous ATP1A1 variant NM_000701.8: c.2707G>A;p.(Gly903Arg) in two unrelated children presenting with delayed motor and speech development and autism. While absent in controls, the variant occurred de novo in one proband and co‐segregated in two affected half‐siblings, with mosaicism in the healthy mother. Using a specific ouabain resistance assay in mutant transfected HEK cells, we found significantly reduced cell viability. Demonstrating loss of ATPase function, we conclude that this novel variant is pathogenic, expanding the phenotype spectrum of ATP1A1.
- Subjects
DEVELOPMENTAL delay; INTELLECTUAL disabilities; AUTISM; GENETIC variation; NEUROLOGICAL disorders; CHILDREN with developmental disabilities; CHILDREN with autism spectrum disorders
- Publication
Annals of Clinical & Translational Neurology, 2024, Vol 11, Issue 4, p1075
- ISSN
2328-9503
- Publication type
Case Study
- DOI
10.1002/acn3.51963