441
It appears that the B cell-specific expression of Ig genes is mediated at least in part by cell type-specific Oct factors , and that there are both quantitative and qualitative differences between Oct-1 and Oct-2 factors .
 protein: Oct-1; protein: Oct-2 factors; protein: type-specific Oct factors; DNA: Ig genes
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: Oct-1; protein: Oct-2 factors; protein: type-specific Oct factors; DNA: Ig genes