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Previous transfection studies of HIV LTR constructs linked to the chloramphenicol acetyltransferase gene indicated that multiple regulatory regions including the enhancer , SP1 , TATA and TAR regions were important for HIV gene expression .
 DNA: chloramphenicol acetyltransferase gene; DNA: TAR regions; DNA: SP1; DNA: regulatory regions; DNA: TATA; DNA: HIV LTR constructs; DNA: HIV LTR; DNA: enhancer
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 gene; DNA: TAR regions; DNA: SP1; DNA: regulatory regions; DNA: TATA; DNA: HIV LTR constructs; DNA: HIV LTR; DNA: enhancer