14143
However, only that located at the 3' end appeared to be utilized in the 2.3-kb cDNA .
 ( DNA: 2.3-kb cDNA, 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: 2.3-kb cDNA, None) 