4971
Plasmids containing 151 bp of 5'-flanking sequences confer myeloid-cell-specific gene expression .
 ( DNA: 151 bp, None) , ( DNA: 5#$%#-flanking sequences, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: 151 bp, None) , ( DNA: 5#$%#-flanking sequences, None) 