9866
The same gene segment was not transcribed in IL-5 -nonproducing T cell clones , suggesting that human T cell IL-5 synthesis is regulated at the transcriptional level .
 ( protein: IL-5, None) , ( protein: IL-5, None) , ( cell line: IL-5 -nonproducing T cell clones, 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-5, None) , ( protein: IL-5, None) , ( cell line: IL-5 -nonproducing T cell clones, None) 