3962
The primary tumors in Group C had a normal profile of p16 , p15 and CDK4 at presentation.
 ( protein: p16, None) , ( protein: p15, None) , ( protein: CDK4, 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: p16, None) , ( protein: p15, None) , ( protein: CDK4, None) 