11760
In addition, this analysis suggests a common step in the signaling pathways that trigger I kappaB alpha , I kappaB beta , and I kappaB epsilon degradation .
 ( protein: I kappaB beta, None) , ( protein: I kappaB, None) , ( protein: I kappaB, None) , ( protein: I kappaB epsilon, None) , ( protein: I kappaB alpha, None) , ( protein: I kappaB, 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: I kappaB beta, None) , ( protein: I kappaB, None) , ( protein: I kappaB, None) , ( protein: I kappaB epsilon, None) , ( protein: I kappaB alpha, None) , ( protein: I kappaB, None) 