450
It is present in an active form in both B cells and non- B cells , where it can mediate transcriptional activation in vitro and in vivo.
 cell type: B cells; cell type: non- B cells; cell type: B cells
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:
 cell type: B cells; cell type: non- B cells; cell type: B cells