5042
Expression of either the cyclic AMP response element-binding protein ( CREB ) or CREB fused to the GAL4 activation domain ( GAD ) in this strain did not modify the expression of the reporter gene .
 ( protein: GAD, None) , ( protein: CREB, None) , ( protein: CREB, None) , ( protein: cyclic AMP response element-binding protein, None) , ( DNA: reporter gene, None) , ( protein: GAL4 activation domain, 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: GAD, None) , ( protein: CREB, None) , ( protein: CREB, None) , ( protein: cyclic AMP response element-binding protein, None) , ( DNA: reporter gene, None) , ( protein: GAL4 activation domain, None) 