13774
By using high throughput screening of microbial broths , we have identified a compound, designated Ro 09-2210 , which is able to block anti-CD3 induced peripheral blood T cell activation with an IC50 = 40 nM.
 ( protein: anti-CD3, 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: anti-CD3, None) 