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To further define the effects of dexamethasone at the molecular level , we prepared a series of deleted c-jun promoter fragments linked to the chloramphenicol acetyltransferase ( CAT ) gene .
 DNA: chloramphenicol acetyltransferase ( CAT ) gene; protein: chloramphenicol acetyltransferase; DNA: c-jun promoter fragments; protein: CAT
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: chloramphenicol acetyltransferase ( CAT ) gene; protein: chloramphenicol acetyltransferase; DNA: c-jun promoter fragments; protein: CAT