9893
In the present study, we monitored Oct-2 expression in cells arrested for the activation of NF-kappaB , an LPS -responsive member of the Rel transcription factor family .
 ( protein: LPS -responsive member, None) , ( protein: Rel transcription factor family, None) , ( protein: Oct-2, None) , ( protein: NF-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: LPS -responsive member, None) , ( protein: Rel transcription factor family, None) , ( protein: Oct-2, None) , ( protein: NF-kappaB, None) 