9396
These bHLH antagonists are induced during a mitogenic signalling response , and they function by sequestering their bHLH targets in inactive heterodimers that are unable to bind to specific gene regulatory (E box) sequences .
 ( protein: inactive heterodimers, None) , ( protein: bHLH antagonists, None) , ( protein: bHLH targets, None) , ( DNA: gene regulatory (E box) sequences, 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: inactive heterodimers, None) , ( protein: bHLH antagonists, None) , ( protein: bHLH targets, None) , ( DNA: gene regulatory (E box) sequences, None) 