1550
When both mutants were used in combination, gamma B*CaM-K inhibited the induction of the IL-2 promoter by delta CaM-AI .
 ( protein: gamma B*CaM-K, None) , ( DNA: IL-2 promoter, None) , ( protein: delta CaM-AI, 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: gamma B*CaM-K, None) , ( DNA: IL-2 promoter, None) , ( protein: delta CaM-AI, None) 