2147
IRES elements have been proposed to be involved in the translation of picornavirus mRNAs and some cellular mRNAs .
 ( DNA: IRES elements, None) , ( RNA: cellular mRNAs, None) , ( RNA: picornavirus mRNAs, None) , ( DNA: IRES, 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: IRES elements, None) , ( RNA: cellular mRNAs, None) , ( RNA: picornavirus mRNAs, None) , ( DNA: IRES, None) 