13645
To determine whether activation of these cytokine signaling pathways by v-Abl is important in the cellular events induced by the Abelson murine leukemia virus , the effects of IL-4 and IL-7 on pre-B cells transformed with a temperature-sensitive v-Abl mutant were examined.
 ( protein: v-Abl, None) , ( protein: v-Abl mutant, None) , ( protein: temperature-sensitive v-Abl mutant, None) , ( cell type: pre-B cells, None) , ( protein: IL-4, None) , ( protein: IL-7, 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: v-Abl, None) , ( protein: v-Abl mutant, None) , ( protein: temperature-sensitive v-Abl mutant, None) , ( cell type: pre-B cells, None) , ( protein: IL-4, None) , ( protein: IL-7, None) 