867
In addition, this TR2RE- SV40 can function as a repressor to suppress the transcriptional activities of both SV40 early and late promoters .
 TR2RE- SV40
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 TR2RE- SV40