['To determine the contribution of TUBB4A, recently associated with DYT4 dystonia in a pedigree with "whispering dysphonia" from Norfolk, United Kingdom, to the etiopathogenesis of primary dystonia.', 'High-resolution melting and Sanger sequencing were used to inspect the entire coding region of TUBB4A in 575 subjects with primary laryngeal, segmental, or generalized dystonia.', 'No pathogenic variants, including the exon 1 variant (c.4C>G) identified in the DYT4 whispering dysphonia kindred, were found in this study.'] Are pathogenic variants in TUBB4A found in primary dystonia?