2215
Analysis of mRNA suggested that Tat exerts its effect on IL-2 primarily at the transcriptional level .
 RNA: mRNA; protein: IL-2
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: mRNA, IL-2 
Answer:
 RNA: mRNA; protein: IL-2