13647
IL-7 also delayed the decreases in the levels of c-Myc , Bcl-2 , and Bcl-xL that occur upon loss of v-Abl kinase activity .
 ( protein: IL-7, None) , ( protein: c-Myc, None) , ( protein: v-Abl, None) , ( protein: Bcl-xL, None) , ( protein: Bcl-2, 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-7, None) , ( protein: c-Myc, None) , ( protein: v-Abl, None) , ( protein: Bcl-xL, None) , ( protein: Bcl-2, None) 