5424
Furthermore, as compared to regulation by phorbol ester , collagenase induction in monocytic cells by cell wall derivatives of bacteria or yeast is largely independent of upstream promoter sequences .
 ( cell type: monocytic cells, None) , ( DNA: upstream promoter sequences, None) , ( protein: collagenase, 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: upstream promoter sequences, None) , ( protein: collagenase, None) 