525
Based on these results, we propose that NTF and OTF2 interactions (both with their cognate DNA elements and possibly at the protein-protein level ) may be critical to B-cell-specific expression and that these interactions provide additional pathways for regulating gene expression .
 protein: OTF2; DNA: cognate DNA elements; protein: NTF
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: OTF2; DNA: cognate DNA elements; protein: NTF