1796
To examine the biochemical mechanism of Tax1 transactivation , we have developed an in vitro transactivation assay in which wild - type Tax1 is able to specifically transactivate a polymerase II promoter through upstream Tax1 - responsive elements .
 GENE: Tax1; GENE: Tax1; GENE: polymerase II; GENE: Tax1 - responsive elements
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: Tax1; GENE: Tax1; GENE: polymerase II; GENE: Tax1 - responsive elements