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B-cell-specific activator protein ( BSAP ) is a recently identified member of the Pax-gene family of transcription factors ; in the lymphoid system , BSAP is produced only in B cells .
 cell type: B cells; protein: BSAP; DNA: Pax-gene family; protein: transcription factors; protein: BSAP; protein: B-cell-specific activator protein
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: B cells; protein: BSAP; DNA: Pax-gene family; protein: transcription factors; protein: BSAP; protein: B-cell-specific activator protein