14705
A R-PK DNA fragment extending from -870 to +54 relative to the cap site confers erythroid specificity to a reporter gene .
 ( DNA: R-PK DNA fragment, None) , ( DNA: cap site, None) , ( DNA: reporter gene, 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: R-PK DNA fragment, None) , ( DNA: cap site, None) , ( DNA: reporter gene, None) 