11988
In the present study, structure/function analyses of the IL-7R complex using a chimeric receptor system demonstrated that gamma(c) is indeed critical for IL-7R function .
 ( protein: IL-7R complex, None) , ( protein: chimeric receptor, None) , ( protein: IL-7R, None) , ( protein: gamma(c), 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: IL-7R complex, None) , ( protein: chimeric receptor, None) , ( protein: IL-7R, None) , ( protein: gamma(c), None) 