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By using deletion mutants of the c-fos promoter , we found that the minimal DNA sequence required for Tat activity was located between nucleotides -404/-220 and that the serum responsive element ( SRE , -317/-288 ), present within this region, was still responsive to Tat .
 DNA: SRE; DNA: c-fos promoter; DNA: serum responsive element; DNA: -317/-288; protein: Tat; protein: Tat; DNA: nucleotides -404/-220; DNA: minimal DNA sequence
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: SRE, c-fos promoter, serum responsive element, -317/-288, Tat, Tat, nucleotides -404/-220, minimal DNA sequence 
Answer:
 DNA: SRE; DNA: c-fos promoter; DNA: serum responsive element; DNA: -317/-288; protein: Tat; protein: Tat; DNA: nucleotides -404/-220; DNA: minimal DNA sequence