1708
In order to examine the potential role of transcriptional silencing during productive HSV - 1 infection , recombinant viruses were generated in which wild - type or mutant ICP34 . 5 promoters controlling the expression of a chloramphenicol acetyltransferase reporter gene were inserted into the thymidine kinase gene of the viral genome .
 GENE: wild - type or mutant ICP34 . 5 promoters; GENE: chloramphenicol acetyltransferase reporter gene; GENE: thymidine kinase gene
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: wild - type or mutant ICP34 . 5 promoters; GENE: chloramphenicol acetyltransferase reporter gene; GENE: thymidine kinase gene