12917
The importance of these sites was confirmed by in vivo studies in gene-targeted mice deficient of either Oct-2 , Bob1 , or both NF-kappaB subunits p50 and p52.
 ( protein: NF-kappaB, None) , ( protein: Oct-2, None) , ( protein: Bob1, 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: NF-kappaB, None) , ( protein: Oct-2, None) , ( protein: Bob1, None) 