8647
Two variants of the IL-4R alpha-chain ( IL-4Ralpha ) gene have been recently identified in association with different atopic disorders .
 ( DNA: IL-4R alpha-chain ( IL-4Ralpha ) gene, None) , ( protein: IL-4R alpha-chain, None) , ( protein: IL-4Ralpha, 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:
 ( DNA: IL-4R alpha-chain ( IL-4Ralpha ) gene, None) , ( protein: IL-4R alpha-chain, None) , ( protein: IL-4Ralpha, None) 