4073
The six 5' upstream and one intronic DHS were detected in only perforin-expressing lymphocytes .
 ( DNA: 5#$%# upstream, None) , ( cell type: perforin-expressing lymphocytes, None) , ( DNA: DHS, None) , ( DNA: intronic DHS, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: 5#$%# upstream, None) , ( cell type: perforin-expressing lymphocytes, None) , ( DNA: DHS, None) , ( DNA: intronic DHS, None) 