De Novo Mutations in Cause Intellectual Disability with Severe Speech Impairment

CHAMP1 encodes a protein with a function in kinetochore-microtubule attachment and in the regulation of chromosome segregation, both of which are known to be important for neurodevelopment. By trio whole-exome sequencing, we have identified de novo deleterious mutations in CHAMP1 in five unrelated individuals affected by intellectual disability with severe speech impairment, motor developmental delay, muscular hypotonia, and similar dysmorphic features including short philtrum and a tented upper and everted lover lip.

Source: The American Journal of Human Genetics - September 3, 2015 Category: Genetics & Stem Cells Authors: Maja Hempel, Kirsten Cremer, Charlotte W. Ockeloen, Klaske D. Lichtenbelt, Johanna C. Herkert, Jonas Denecke, Tobias B. Haack, Alexander M. Zink, Jessica Becker, Eva Wohlleber, Jessika Johannsen, Bader Alhaddad, Rolph Pfundt, Sigrid Fuchs, Dagmar Wie Tags: Report Source Type: research