Genotype/Phenotype Correlation of MORC2 Mutations

Who May Qualify: - Presence of a mutation in the MORC2 gene, identified during an evaluation for peripheral neuropathy or intellectual disability - Patient has undergone electromyography (EMG) or is able to undergo EMG during the inclusion visit - Affiliation with the national health insurance system - willing to sign a consent form from the patient if an adult, or from parents/legal guardians if the patient is a minor Who Should NOT Join This Trial: - Presence of another mutation responsible for peripheral neuropathy or intellectual disability - Refusal to undergo biological sample collection - Regulatory Who Should NOT Join This Trial: - Pregnant, postpartum, or breastfeeding women - Individuals deprived of liberty by judicial or administrative decision - Individuals not affiliated with a social security system or not benefiting from an equivalent health coverage scheme Always talk to your doctor about whether this trial is right for you.