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However, transactivation of the CD4 promoter by ORFs U86 and U89 is independent of the CRE element , suggesting that additional HHV-6 ORFs are likely to contribute to CD4 gene activation.
 DNA: ORFs; DNA: CD4 promoter; DNA: CRE element; DNA: HHV-6 ORFs; DNA: U86; DNA: U89; DNA: CD4 gene
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: ORFs, CD4 promoter, CRE element, HHV-6 ORFs, U86, U89, CD4 gene 
Answer:
 DNA: ORFs; DNA: CD4 promoter; DNA: CRE element; DNA: HHV-6 ORFs; DNA: U86; DNA: U89; DNA: CD4 gene