673
Germ line C transcripts can be induced by IL-4 in the human B cell line , BL-2 .
 ( protein: IL-4, None) , ( RNA: Germ line C transcripts, None) , ( cell line: BL-2, None) , ( cell line: human B cell line, 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: IL-4, None) , ( RNA: Germ line C transcripts, None) , ( cell line: BL-2, None) , ( cell line: human B cell line, None) 