14647
Co-expression of both PU.1 and Ets-1 in nonlymphoid cells trans-activated reporter plasmids that contained the minimal mu enhancer .
 ( protein: PU.1, None) , ( DNA: mu enhancer, None) , ( DNA: trans-activated reporter plasmids, None) , ( protein: Ets-1, None) , ( cell type: nonlymphoid cells, 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: PU.1, None) , ( DNA: mu enhancer, None) , ( DNA: trans-activated reporter plasmids, None) , ( protein: Ets-1, None) , ( cell type: nonlymphoid cells, None) 