Genotype/Phenotype Correlation of MORC2 Mutations

The Microrchidia CW-type zinc finger 2 (MORC2) gene encodes a protein expressed in all tissues and enriched in the brain. It is involved in Charcot-Marie-Tooth disease, with mire than 30 families presenting MORC2 mutations. Recently, MORC2 mutation have been shown to be responsible for more complex phenotypes like DIFGAN: developmental delay, impaired growth, dysmorphic facies and axonal neuropathy. Different mutations are responsible from a diverse spectrum of phenotype, from CMT to DIFGAN. MORC2 is involved, through its ATPase activity, in DNA repair, chromatin remodeling and epigenetic silencing via the Human silencing hub (HUSH) complex. Our hypothesis is that the hypo- or hyper-activation of the HUSH complex by different MORC2 mutations could be responsible for different phenotypes in patients. The aim of this study is to perform a genotype-phenotype correlation study in patients presenting MORC2 mutations.

This description comes directly from the study's public registry record.

Shams RIBAULT, MD  ·  00334 72 07 25 73  ·  shams.ribault@chu-lyon.fr

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