12151
The molecular mechanisms by which IL-4 induces expression of the IL-4 gene are not known, although the IL-4 -activated transcription factor signal transducer and activator of transcription 6 ( Stat6 ) is required for this effect.
 ( protein: IL-4, None) , ( protein: IL-4, None) , ( protein: IL-4, None) , ( protein: IL-4 -activated transcription factor signal transducer and activator of transcription 6, None) , ( DNA: IL-4 gene, None) , ( protein: transcription factor, None) , ( protein: Stat6, 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-4, None) , ( protein: IL-4, None) , ( protein: IL-4, None) , ( protein: IL-4 -activated transcription factor signal transducer and activator of transcription 6, None) , ( DNA: IL-4 gene, None) , ( protein: transcription factor, None) , ( protein: Stat6, None) 