1410
Furthermore, multimerized region II sequence elements enhanced the activity of a heterologous thymidine kinase promoter in monocytic cells but not other cell types tested.
 ( cell type: monocytic cells, None) , ( DNA: region II, None) , ( DNA: heterologous thymidine kinase promoter, None) , ( DNA: multimerized region II sequence elements, 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: monocytic cells, None) , ( DNA: region II, None) , ( DNA: heterologous thymidine kinase promoter, None) , ( DNA: multimerized region II sequence elements, None) 