4840
A protein footprint was visible over this region of the c-myb 5' flanking sequence in activated T cells but not in unactivated T cells .
 c-myb 5' flanking sequence, unactivated T cells, activated T cells
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:
 c-myb 5' flanking sequence, unactivated T cells, activated T cells