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Recently the MHC class II transactivator ( CIITA ) has been reported to be a major regulatory factor for both the constitutive and IFN inducible expression of MHC class II genes .
 protein: CIITA; protein: MHC class II transactivator; protein: major regulatory factor; DNA: MHC class II genes
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: CIITA; protein: MHC class II transactivator; protein: major regulatory factor; DNA: MHC class II genes