9668
In addition, we have isolated a third NF-kappa B inhibitor , I kappa B epsilon (1).
 ( protein: I kappa B epsilon, None) , ( protein: NF-kappa B, None) , ( protein: NF-kappa B inhibitor, 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 kappa B epsilon, None) , ( protein: NF-kappa B, None) , ( protein: NF-kappa B inhibitor, None) 