6247
A novel immunosuppressive factor in bovine colostrum blocks activation of the interleukin 2 gene enhancer at the NFAT site .
 ( DNA: interleukin 2 gene enhancer, None) , ( protein: immunosuppressive factor, None) , ( DNA: NFAT site, 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: interleukin 2 gene enhancer, None) , ( protein: immunosuppressive factor, None) , ( DNA: NFAT site, None) 