13990
Loss- and gain-of-function mutations reveal an important role of BSAP ( Pax-5 ) at the start and end of B cell differentiation .
 Pax-5, BSAP
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 Pax-5, BSAP