48
It also primes cells to become IL-2 responsive and thereby prepares the second phase, in which IL-2 induces a 100-fold further increase in IL-2R alpha transcripts .
 ( RNA: IL-2R alpha transcripts, None) , ( protein: IL-2R alpha, None) , ( protein: IL-2, None) , ( protein: IL-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:
 ( RNA: IL-2R alpha transcripts, None) , ( protein: IL-2R alpha, None) , ( protein: IL-2, None) , ( protein: IL-2, None) 