491
These findings provide direct in vivo evidence to strongly suggest that the modulation of X1 and X2 interactions is an important constituent of the interferon gamma induction pathway .
 DNA: X2; DNA: X1; protein: interferon gamma
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 DNA: X2; DNA: X1; protein: interferon gamma