1323
Studies presented here show that overall NF-kappa B signal transduction begins with a parallel series of stimuli-specific pathways through which cytokines ( tumor necrosis factor alpha ), oxidants ( hydrogen peroxide and mitomycin C ), and phorbol ester ( phorbol 12-myristate 13-acetate ) individually initiate signaling.
 ( protein: tumor necrosis factor alpha, None) , ( protein: NF-kappa B, None) , ( protein: cytokines, 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: NF-kappa B, None) , ( protein: cytokines, None) 