10552
A structure-function analysis demonstrated that induction of apoptosis was not a dominant-negative effect of the E2a moiety but, rather, required the DNA-binding homeodomain of Pbx1 .
 ( protein: E2a moiety, None) , ( protein: DNA-binding homeodomain, None) , ( protein: Pbx1, 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: E2a moiety, None) , ( protein: DNA-binding homeodomain, None) , ( protein: Pbx1, None) 