6248
A factor in bovine colostrum ( colostrum inhibitory factor , CIF ) inhibits interleukin 2 ( IL2 ) production in activated T helper cells by blocking the accumulation of IL2 mRNA .
 ( protein: IL2, None) , ( protein: colostrum inhibitory factor, None) , ( RNA: IL2 mRNA, None) , ( cell type: T helper cells, None) , ( protein: IL2, None) , ( protein: interleukin 2, None) , ( protein: CIF, 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: IL2, None) , ( protein: colostrum inhibitory factor, None) , ( RNA: IL2 mRNA, None) , ( cell type: T helper cells, None) , ( protein: IL2, None) , ( protein: interleukin 2, None) , ( protein: CIF, None) 