862
Both C1 and C2 proteins also bind to a similar sequence found in the interleukin-2 -receptor alpha-subunit enhancer .
 protein: C1; protein: interleukin-2 -receptor alpha-subunit; protein: C2 proteins; protein: interleukin-2; DNA: interleukin-2 -receptor alpha-subunit enhancer
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: C1; protein: interleukin-2 -receptor alpha-subunit; protein: C2 proteins; protein: interleukin-2; DNA: interleukin-2 -receptor alpha-subunit enhancer