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The bipartite human interleukin-4 ( IL-4 ) receptor was functionally expressed in murine pro-B cells and activated by human IL-4 to evoke intracellular signaling.
 ( cell type: pro-B cells, None) , ( protein: bipartite human interleukin-4 ( IL-4 ) receptor, None) , ( protein: IL-4, None) , ( protein: human IL-4, None) , ( protein: IL-4, None) , ( protein: interleukin-4, None) , ( cell type: murine pro-B cells, 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 type: pro-B cells, None) , ( protein: bipartite human interleukin-4 ( IL-4 ) receptor, None) , ( protein: IL-4, None) , ( protein: human IL-4, None) , ( protein: IL-4, None) , ( protein: interleukin-4, None) , ( cell type: murine pro-B cells, None) 