1900
It seems therefore that PGE2 , by elevating cAMP levels , interferes with the activation pathway for NF-kappa B but not for NF-AT , AP-1 or CLE0 binding protein .
 ( protein: NF-kappa B, None) , ( protein: PGE2, None) , ( protein: AP-1, None) , ( protein: CLE0 binding protein, None) , ( protein: NF-AT, 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: NF-kappa B, None) , ( protein: PGE2, None) , ( protein: AP-1, None) , ( protein: CLE0 binding protein, None) , ( protein: NF-AT, None) 