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Transfections of E3 constructs linked to the chloramphenicol acetyltransferase gene revealed that mutagenesis of the distal NF-kappa B motif ( L2 ) had minimal effects on promoter expression in HeLa cells , but resulted in dramatic decreases in expression by lymphoid cells .
 cell type: lymphoid cells; DNA: L2; cell line: HeLa cells; DNA: E3 constructs; DNA: distal NF-kappa B motif; protein: NF-kappa B; DNA: chloramphenicol acetyltransferase gene
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:
 cell type: lymphoid cells; DNA: L2; cell line: HeLa cells; DNA: E3 constructs; DNA: distal NF-kappa B motif; protein: NF-kappa B; DNA: chloramphenicol acetyltransferase gene