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We show here that domain B is an R-responsive element in HeLa cells and is therefore not an EB1 -responsive B-cell-specific element .
 protein: EB1; DNA: R-responsive element; cell line: HeLa cells; DNA: domain B; DNA: EB1 -responsive B-cell-specific element
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:
 protein: EB1; DNA: R-responsive element; cell line: HeLa cells; DNA: domain B; DNA: EB1 -responsive B-cell-specific element