14480
In contrast to the type I receptor , the type II IL-1R has a small cytoplasmic tail , and it is not clear whether this receptor is a signal-transducing or a regulatory molecule .
 ( protein: signal-transducing, None) , ( protein: cytoplasmic tail, None) , ( protein: IL-1R, None) , ( protein: type I receptor, None) , ( protein: regulatory molecule, None) , ( protein: type II IL-1R, 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: signal-transducing, None) , ( protein: cytoplasmic tail, None) , ( protein: IL-1R, None) , ( protein: type I receptor, None) , ( protein: regulatory molecule, None) , ( protein: type II IL-1R, None) 