8342
Despite minimal discrepancies in the coding region , there are striking tissue- and cell type-specific differences in isoform expression patterns .
 ( DNA: coding region, 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: coding region, None) 