4647
A stable transformant of the PLAP reporter gene derived from human monocytic cell line showed very little activity on the promoter before stimulation, whereas LPS stimulation led to a dramatic increase in PLAP activity .
 ( DNA: PLAP reporter gene, None) , ( cell line: human monocytic cell line, None) , ( protein: PLAP, None) , ( protein: PLAP, 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:
 ( DNA: PLAP reporter gene, None) , ( cell line: human monocytic cell line, None) , ( protein: PLAP, None) , ( protein: PLAP, None) 