1597
Since Duchenne muscular dystrophy was attributed to mutations in the dystrophin gene , more than 30 genes have been found to be causally related with muscular dystrophies , about half of them encoding proteins of the dystrophin - glycoprotein complex ( DGC ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None