DYT1 dystonia is caused by a mutation in the TOR1A gene (c.904_906delGAG/907_909delGAG; p.Glu302del/Glu303del; TOR1AΔE), which encodes the protein torsinA; this mutation results in an in-frame deletion of a codon for glutamic acid (ΔE-torsinA) [28, 29]. This evidence concerns the gene TOR1A and Dystonia.