780
These results suggest that OTF-1 , without OTF-2 , is sufficient for transcription of immunoglobulin genes and that OTF-2 alone is not responsible for the B-cell-specific regulation of immunoglobulin gene expression .
 DNA: immunoglobulin genes; protein: OTF-1; protein: OTF-2; DNA: immunoglobulin gene; protein: OTF-2
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:
 DNA: immunoglobulin genes; protein: OTF-1; protein: OTF-2; DNA: immunoglobulin gene; protein: OTF-2