1188
Thus, the dioxin receptor system provides a complex and interesting model of the regulation of transcription factors by hsp90 .
 ( protein: dioxin receptor, None) , ( protein: hsp90, None) , ( protein: transcription factors, 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: dioxin receptor, None) , ( protein: hsp90, None) , ( protein: transcription factors, None) 