465
The main difference between Ramos ( B cells ) and Jurkat ( T cells ) in the regulation of c-fos is that cAMP plus calcium is strongly synergistic in Jurkat and is without effect in Ramos .
 ( cell line: Jurkat, None) , ( cell line: Jurkat, None) , ( cell type: T cells, None) , ( cell line: Ramos, None) , ( DNA: c-fos, None) , ( cell type: B cells, None) , ( cell line: Ramos, 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:
 ( cell line: Jurkat, None) , ( cell line: Jurkat, None) , ( cell type: T cells, None) , ( cell line: Ramos, None) , ( DNA: c-fos, None) , ( cell type: B cells, None) , ( cell line: Ramos, None) 