989
The interaction of the transcription factors , activator protein-1 ( AP-1 ), nuclear factor kappa B ( NF kappa B ), and cAMP-responsive element binding protein ( CREB ) with DNA and glucocorticoid receptors ( GR ) was analyzed in human peripheral blood mononuclear cells by gel mobility shift assays .
 ( protein: cAMP-responsive element binding protein, None) , ( protein: transcription factors, None) , ( protein: nuclear factor kappa B, None) , ( protein: glucocorticoid receptors, None) , ( cell type: human peripheral blood mononuclear cells, None) , ( protein: NF kappa B, None) , ( protein: AP-1, None) , ( protein: CREB, None) , ( protein: activator protein-1, None) , ( protein: GR, 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: cAMP-responsive element binding protein, None) , ( protein: transcription factors, None) , ( protein: nuclear factor kappa B, None) , ( protein: glucocorticoid receptors, None) , ( cell type: human peripheral blood mononuclear cells, None) , ( protein: NF kappa B, None) , ( protein: AP-1, None) , ( protein: CREB, None) , ( protein: activator protein-1, None) , ( protein: GR, None) 