12256
Co-transfection with dominant-negative mutant TNFRI inhibited EC activation by NK cell membrane extracts and by NK cells by 80% and 47%, respectively.
 ( cell type: NK cells, None) , ( protein: dominant-negative mutant TNFRI, None) , ( cell type: EC, 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:
 ( cell type: NK cells, None) , ( protein: dominant-negative mutant TNFRI, None) , ( cell type: EC, None) 