obsolete dystonia, DOPA-responsive true A dystonia characterized by generalized dystonia, diurnal fluctuation of symptoms, and a dramatic therapeutic response to L-dopa that has_material_basis_in heterozygous mutation in the GCH1 gene on chromosome 14q13. DOID:0060963 Autosomal dominant Segawa syndrome DOPA-RESPONSIVE DYSTONIA, AUTOSOMAL DOMINANT DYSTONIA, PROGRESSIVE, WITH DIURNAL VARIATION DYSTONIA-PARKINSONISM WITH DIURNAL FLUCTUATION GTPCH1-deficient DRD disease_ontology DYSTONIA, DOPA-RESPONSIVE, AUTOSOMAL DOMINANT GTPCH1-deficient dopa-responsive dystonia HPD with marked diurnal fluctuation Hereditary progressive dystonia with marked diurnal fluctuation dopa-responsive dystonia