2900
Contrary to the idea that protein kinase C is involved in TCR -mediated activation of NF-kappaB , high doses of staurosporine did not interfere with activation of NF-kappaB by PHA , while the same dose of staurosporine completely blocked activation by PMA .
 ( protein: TCR, None) , ( protein: PHA, None) , ( protein: protein kinase C, None) , ( protein: NF-kappaB, None) , ( protein: NF-kappaB, 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: TCR, None) , ( protein: PHA, None) , ( protein: protein kinase C, None) , ( protein: NF-kappaB, None) , ( protein: NF-kappaB, None) 