12319
Constitutive association of JAK1 and STAT5 in pro-B cells is dissolved by interleukin-4 -induced tyrosine phosphorylation of both proteins.
 ( protein: interleukin-4, None) , ( protein: JAK1, None) , ( protein: STAT5, None) , ( cell type: 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:
 ( protein: interleukin-4, None) , ( protein: JAK1, None) , ( protein: STAT5, None) , ( cell type: pro-B cells, None) 