GNAL and torsion dystonia 6: GNAL (Dystonia-25, DYT25, MIM# 615073), THAP1 (torsion dystonia-6, DYT6, MIM# 602629), TOR1A (torsion dystonia-1, DYT1, MIM# 128100), CIZ1, HPCA (torsion dystonia-2, DYT2, MIM# 224500), TUBB4A (torsion dystonia-4, DYT4, MIM# 128101) and COL6A3 (dystonia-27, DYT27, MIM# 616411) had 100% coverage by WES and no reportable variants were identified in any of these genes.