Pathogenic Cav3.2 channel mutation in a child with primary generalized epilepsy

Two paternally-inherited missense variants in CACNA1H were identified and characterized in a 6-year-old child with generalized epilepsy. Febrile and unprovoked seizures were present in this child. Both variants were expressed in cis or isolation using human recombinant Cav3.2 calcium channels in tsA...

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Detalles Bibliográficos
Autores principales: Souza, Ivana A., Gandini, Maria A., Zhang, Fang-Xiong, Mitchell, Wendy G., Matsumoto, Joyce, Lerner, Jason, Pierson, Tyler Mark, Zamponi, Gerald W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2019
Materias:
Short Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6814130/
https://www.ncbi.nlm.nih.gov/pubmed/31651342
http://dx.doi.org/10.1186/s13041-019-0509-5
Descripción
Sumario:Two paternally-inherited missense variants in CACNA1H were identified and characterized in a 6-year-old child with generalized epilepsy. Febrile and unprovoked seizures were present in this child. Both variants were expressed in cis or isolation using human recombinant Cav3.2 calcium channels in tsA-201 cells. Whole-cell patch-clamp recordings indicated that one variant (c.3844C > T; p.R1282W) caused a significant increase in current density consistent with a pathogenic gain-of-function phenotype; while the other cis-related variant (c.5294C > T; p.A1765V) had a benign profile.

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