12774
We propose that the inducible transcription factor binding sites in the 5'-UTR comprise a downstream enhancer domain that can function independent of, or in concert with, the LTR promoter to rapidly increase latent proviral transcription in response to cell activation signals .
 inducible transcription factor binding sites, downstream enhancer domain, binding sites, LTR, LTR promoter, 5'-UTR
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:
 inducible transcription factor binding sites, downstream enhancer domain, binding sites, LTR, LTR promoter, 5'-UTR