In a large - scale sequencing project in approximately 200 pedigrees with suspected
X-linked intellectual disability, two protein - truncating mutations in SLC9A6 were found [5].
«Seven genes for
X-linked intellectual disability: New mutations on the X chromosome.»
X-linked intellectual disability is caused by defective genes on the X chromosome.
An international research team headed by Max Planck researcher Vera Kalscheuer has now analysed 405 families, in which cases of
X-linked intellectual disability occur.
In addition, they discovered that
X-linked intellectual disability can also be caused by mutations in seven other genes that, until now, were not associated with the disorder.
With the help of systematic re-sequencing of all X-linked genes, the responsible genetic defect can be identified in around 60 percent of families with
X-linked intellectual disability.
«In addition to known disease - related genes, we have discovered seven novel genes as the cause of
X-linked intellectual disability and analysed what signaling pathways in the cells each protein is involved in,» says Kalscheuer.
X-linked intellectual disability is a disorder that predominantly affects men and can have highly variable clinical manifestations.
«
X-linked intellectual disability: Medical mystery solved in record time.»
Not exact matches
The authors unveil a novel mouse model of chromosome Xq22.1 deletion syndrome, a human disease characterized by developmental delay,
intellectual disability, epilepsy, dysmorphic features, and an
X-linked pattern of inheritance.
Assuming between 1 % and 3 % of the world's population is diagnosed with an
intellectual disability, and approximately 10 % to 20 % of the causes are due to
X-linked genes, CS may affect between one in 16,000 and one in 100,000 people.