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A novel B-cell-specific transcription factor , BSAP , was identified as a mammalian homolog of the sea urchin protein TSAP , which interacts with the promoters of four tissue-specific late histone H2A-2 and H2B-2 genes .
 protein: mammalian homolog; protein: sea urchin protein; protein: TSAP; protein: BSAP; DNA: promoters; protein: B-cell-specific transcription factor
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: mammalian homolog; protein: sea urchin protein; protein: TSAP; protein: BSAP; DNA: promoters; protein: B-cell-specific transcription factor