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We have analyzed the distribution of NF-AT transcriptional activity among T cells undergoing activation by using a construct in which three tandem copies of the NF-AT -binding site directs transcription of the lacZ gene .
 DNA: lacZ gene; DNA: NF-AT -binding site; cell type: T cells; protein: NF-AT; protein: NF-AT
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: lacZ gene; DNA: NF-AT -binding site; cell type: T cells; protein: NF-AT; protein: NF-AT