2586
Wild-type Chinese hamster ovary (CHO)-K1 cells can be activated by endotoxin to release arachidonate following transfection with human CD14 ( CHO/ CD14 ).
 ( protein: CD14, None) , ( protein: CHO/ CD14, None) , ( protein: CD14, None) , ( cell line: Chinese hamster ovary (CHO)-K1 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:
 ( protein: CD14, None) , ( protein: CHO/ CD14, None) , ( protein: CD14, None) , ( cell line: Chinese hamster ovary (CHO)-K1 cells, None) 