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The adenovirus early region 3 ( ES ) gene products are involved in the maintenance of viral persistence by complexing with the class I MHC antigens , thus preventing their cell surface expression with a resultant decrease in host immunologic destruction .
 protein: class I MHC antigens; DNA: ES; DNA: adenovirus early region 3; protein: adenovirus early region 3 ( ES ) gene products
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:
 protein: class I MHC antigens; DNA: ES; DNA: adenovirus early region 3; protein: adenovirus early region 3 ( ES ) gene products