6542
The signal transduction events triggered by cross-linking of the CD40 receptor have been widely studied in B cell lines , but little is known about signaling following CD40 stimulation of monocytes and resting tonsillar B cells .
 ( protein: CD40, None) , ( cell line: resting tonsillar B cells, None) , ( cell type: monocytes, None) , ( cell line: B cell lines, None) , ( protein: CD40 receptor, None) , ( protein: CD40, 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: CD40, None) , ( cell line: resting tonsillar B cells, None) , ( cell type: monocytes, None) , ( cell line: B cell lines, None) , ( protein: CD40 receptor, None) , ( protein: CD40, None) 