1517
Mutations in a gene coding for an ATP - binding protein were detected in idiopathic torsion dystonia ( DYT1 ) , and the GTP cyclohydrolase 1 gene is mutated in dopa - responsive dystonia ( DYT5 ) .
 idiopathic torsion dystonia, dopa - responsive dystonia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 idiopathic torsion dystonia, dopa - responsive dystonia