3197
The interleukin 2 receptor alpha-chain ( IL-2R alpha ) gene is a key regulator of lymphocyte proliferation .
 ( protein: IL-2R alpha, None) , ( DNA: interleukin 2 receptor alpha-chain ( IL-2R alpha ) gene, None) , ( protein: interleukin 2 receptor alpha-chain, 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-2R alpha, None) , ( DNA: interleukin 2 receptor alpha-chain ( IL-2R alpha ) gene, None) , ( protein: interleukin 2 receptor alpha-chain, None) 