9284
Transfection of EL-4 cells with the IL-4 promoter-reporter constructs carrying mutated P -like elements showed that four P-like elements , CLE0 , P , P2 and P4 , but not P3 , were required for optimal activation of the IL-4 promoter .
 ( DNA: P, None) , ( DNA: IL-4 promoter, None) , ( DNA: mutated P -like elements, None) , ( DNA: CLE0, None) , ( DNA: P3, None) , ( cell line: EL-4 cells, None) , ( DNA: IL-4 promoter-reporter constructs, None) , ( DNA: P2, None) , ( DNA: P, None) , ( DNA: P-like elements, None) , ( DNA: P4, 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:
 ( DNA: P, None) , ( DNA: IL-4 promoter, None) , ( DNA: mutated P -like elements, None) , ( DNA: CLE0, None) , ( DNA: P3, None) , ( cell line: EL-4 cells, None) , ( DNA: IL-4 promoter-reporter constructs, None) , ( DNA: P2, None) , ( DNA: P, None) , ( DNA: P-like elements, None) , ( DNA: P4, None) 