2098
Binding of superantigens to MHC class II molecules results in transduction of biochemical signals leading to cellular activation and gene expression .
 MHC class II molecules
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 MHC class II molecules