559
A weaker chi B complex formation and faster-migrating complexes were detected in non- IL-2 -secreting cells .
 ( protein: IL-2, None) , ( DNA: chi B, None) , ( cell line: non- IL-2 -secreting cells, 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) , ( DNA: chi B, None) , ( cell line: non- IL-2 -secreting cells, None) 