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Updated: Nov 30, 2025

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
Adult phenotype of the homozygous missense mutation c.655G>A, p.Gly219Arg in SLC13A5: A case report
Maria Arvio1,2,3,4, Jaana Lähdetie2
1KTO-Special Welfare District of Varsinais-Suomi, Paimio, Finland.
Abstract:
Homozygous recessive or compound heterozygous mutations in SLC13A5-gene as a cause of Early Infantile Epileptic Encephalopathy subtype 25 (OMIM 615905) were published in 2014. Previous clinical reports describe young patients, aged <34 years. We describe 54- and 56-year-old siblings and show that the disorder linked to SLC13A5 is not just a pediatric problem but may affect the patient for decades resulting in profound intellectual disability, severe motor handicap, and abnormal electroencephalography without active epilepsy. Other diagnostic hints in adults are small size, spasticity and severe abrasion due to amelogenesis imperfecta of the hypoplastic type.
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