Disease_Mapped_To_Gene Early Onset Primary Dystonia Autosomal Dominant Torsion Dystonia 1 Autosomal Dominant Torsion Dystonia 1 C1851945 C118780 Autosomal Dominant Torsion Dystonia 1 Disease or Syndrome Cellosaurus An autosomal dominant inherited disorder caused by mutations in the TOR1A gene. It usually begins in childhood or adolescence and is characterized by involuntary muscle contractions in the arms, legs, trunk, and neck. DYT1 TOR1A Gene Cellosaurus Disease Terminology Genetic Torsion Dystonia