1766
Antiandrogens result in protection of both the hinge region and C-terminus of the androgen receptor agonist proteolytic attack , whereas other studies showed that antiestrogens and antiprogestagens expose the C-terminal end of the ligand binding domain of their respective receptors to protease .
 ( protein: ligand binding domain, None) , ( protein: hinge region, None) , ( protein: C-terminus, None) , ( protein: C-terminal end, None) , ( protein: protease, None) , ( protein: androgen receptor, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: ligand binding domain, None) , ( protein: hinge region, None) , ( protein: C-terminus, None) , ( protein: C-terminal end, None) , ( protein: protease, None) , ( protein: androgen receptor, None) 