4743
We further showed a significant repression of promoter activity ( > 40 fold ) by E2 - 2 ( lacking the amino acid sequence RSRS ) when the E47 reporter construct , containing a hexameric E - box site , was used .
 GENE: E2 - 2; GENE: E47 reporter construct
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: E2 - 2; GENE: E47 reporter construct