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Moreover, BSAP is clearly a B-cell-specific transcription factor , as a wild-type but not a mutant TSAP -binding site of the sea urchin functions only in transfected B cells as an upstream promoter element .
 cell line: transfected B cells; protein: TSAP; DNA: mutant TSAP -binding site; DNA: upstream promoter element; protein: BSAP; protein: B-cell-specific transcription factor; DNA: wild-type
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 line: transfected B cells; protein: TSAP; DNA: mutant TSAP -binding site; DNA: upstream promoter element; protein: BSAP; protein: B-cell-specific transcription factor; DNA: wild-type