2287
Study of the inhibitory activities of phosphotyrosine-containing peptides derived from the intracellular domain of the IL-4 receptor provided evidence for direct coupling of receptor and transcription factor during the IL-4 Stat activation cycle .
 ( protein: transcription factor, None) , ( protein: IL-4, None) , ( protein: IL-4 Stat, None) , ( protein: receptor, None) , ( protein: intracellular domain of the IL-4 receptor, 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: transcription factor, None) , ( protein: IL-4, None) , ( protein: IL-4 Stat, None) , ( protein: receptor, None) , ( protein: intracellular domain of the IL-4 receptor, None) 