1377
The C26 element conferred partial responsiveness to p40tax when linked to one copy of the 21-bp element that, by itself, showed little activation in response to p40tax .
 DNA: 21-bp element; protein: p40tax; DNA: C26 element; protein: p40tax
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: 21-bp element; protein: p40tax; DNA: C26 element; protein: p40tax