Truncating biallelic variant in DNAJA1, encoding the co-chaperone Hsp40, is associated with intellectual disability and seizures
2019
Intellectual disabilityposes a huge burden on the health care system, and it is one of the most common referral reasons to the genetic and child neurology clinic.
Intellectual disability(ID) is genetically heterogeneous, and it is associated with several other neurological conditions.
Exome sequencingis a robust genetic tool and has revolutionized the process of molecular diagnosis and novel gene discovery. Besides its diagnostic clinical value, novel gene discovery is prime in
reverse genetics, when human mutations help to understand the function of a gene and may aid in better understanding of the human brain and nervous system. Using WES, we identified a biallelic truncating variant in DNAJA1 gene (c.511C>T p.(Gln171*) in a multiplex Saudi
consanguineousfamily. The main phenotype shared between the siblings was
intellectual disabilityand seizure disorder.
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