4150
Induction of activator protein (AP)-1 and nuclear factor-kappaB by CD28 stimulation involves both phosphatidylinositol 3-kinase and acidic sphingomyelinase signals .
 ( protein: acidic sphingomyelinase, None) , ( protein: nuclear factor-kappaB, None) , ( protein: phosphatidylinositol 3-kinase, None) , ( protein: CD28, None) , ( protein: activator protein (AP)-1, 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: acidic sphingomyelinase, None) , ( protein: nuclear factor-kappaB, None) , ( protein: phosphatidylinositol 3-kinase, None) , ( protein: CD28, None) , ( protein: activator protein (AP)-1, None) 