1380
These findings therefore suggest that the HTLV-I enhancer contains multiple functional elements , including binding sites for at least CREB- and NF-kappa B- like factors , which synergistically cooperate in activation of the HTLV-I enhancer in response to p40tax .
 DNA: multiple functional elements; protein: p40tax; DNA: HTLV-I enhancer; DNA: HTLV-I enhancer
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:
 DNA: multiple functional elements; protein: p40tax; DNA: HTLV-I enhancer; DNA: HTLV-I enhancer