6051
A dominant-negative version of STAT5b , but not of STAT5a , interfered with IL-4 -induced DNA synthesis in Ba/F3 cells , suggesting an involvement of STAT5b in the control of cell proliferation through IL-4R .
 ( protein: IL-4, None) , ( protein: dominant-negative version, None) , ( protein: STAT5b, None) , ( protein: IL-4R, None) , ( protein: STAT5a, None) , ( cell line: Ba/F3 cells, None) , ( protein: STAT5b, 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) , ( protein: dominant-negative version, None) , ( protein: STAT5b, None) , ( protein: IL-4R, None) , ( protein: STAT5a, None) , ( cell line: Ba/F3 cells, None) , ( protein: STAT5b, None) 