8577
However, while HUVECs contained endothelial NOS protein , no inducible NOS was detected in either tolerant or nontolerant cells .
 ( cell line: HUVECs, None) , ( protein: NOS protein, None) , ( protein: NOS, None) , ( cell type: nontolerant cells, 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 line: HUVECs, None) , ( protein: NOS protein, None) , ( protein: NOS, None) , ( cell type: nontolerant cells, None) 