3353
Northern blot analyses performed on rat and mouse tissues have detected ubiquitously expressed Pan transcripts, but the abundance, distribution, and form of Pan proteins have not been clearly defined.
 ( protein: Pan proteins, 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:
 ( protein: Pan proteins, None) 