Dystonia-6, torsion (DYT6) is an autosomal dominant movement disorder characterized by early involvement of craniofacial muscles with secondary generalization often involving the arms, and laryngeal dystonia that causes speech difficulties. A heterozygous truncating variant in the THAP1 gene, c.135_139delinsGGGTTTA (p.Phe45Leufs*), has been identified in the Amish-Mennonite families affected with DYT6. This targeted test is developed to specifically analyze the c.135_139delinsGGGTTTA variant.
Type B
1 - 2 weeks