4642
Inhibitory effect of E3330 , a novel quinone derivative able to suppress tumor necrosis factor-alpha generation , on activation of nuclear factor-kappa B .
 ( protein: tumor necrosis factor-alpha, None) , ( protein: nuclear factor-kappa B, 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: tumor necrosis factor-alpha, None) , ( protein: nuclear factor-kappa B, None) 