11966
These results suggests that both proximal steps in CD8+ T-cell activation as well as the later phases are unresponsive to A6H ligation .
 ( protein: A6H, 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: A6H, None) 