10262
Using site-directed mutagenesis, we found that two of these predicted alpha-helices are required for full transcriptional activation by CIITA .
 alpha-helices, CIITA
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:
 alpha-helices, CIITA