7331
These results point out the involvement of NF-kappa B /Rel family proteins in growth signaling pathways by either regulating proteins involved in the IL-2 signaling or by functionally interfering with the cell cycle progression .
 ( protein: IL-2, None) , ( protein: regulating proteins, None) , ( protein: NF-kappa B /Rel family proteins, None) , ( protein: NF-kappa B, 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-2, None) , ( protein: regulating proteins, None) , ( protein: NF-kappa B /Rel family proteins, None) , ( protein: NF-kappa B, None) 