5935
NF-kappaB -mediated up-regulation of Bcl-x and Bfl-1/A1 is required for CD40 survival signaling in B lymphocytes .
 ( protein: Bfl-1/A1, None) , ( protein: Bcl-x, None) , ( protein: NF-kappaB, None) , ( cell type: B lymphocytes, None) , ( protein: CD40, None) , ( cell type: NF-kappaB -mediated up-regulation, 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: Bfl-1/A1, None) , ( protein: Bcl-x, None) , ( protein: NF-kappaB, None) , ( cell type: B lymphocytes, None) , ( protein: CD40, None) , ( cell type: NF-kappaB -mediated up-regulation, None) 