13994
The characterization of Pax-5 -deficient pro-B cells demonstrated an important role of BSAP in the regulation of the CD19 , mb-1 ( Ig alpha ) and N-myc genes as well as in the developmental pathway controlling VH-to-DHJH recombination at the immunoglobulin heavy-chain ( IgH ) locus .
 mb-1, Ig alpha, IgH, immunoglobulin heavy-chain ( IgH ) locus, Pax-5, immunoglobulin heavy-chain, CD19, BSAP, Pax-5 -deficient pro-B cells, N-myc genes
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:
 mb-1, Ig alpha, IgH, immunoglobulin heavy-chain ( IgH ) locus, Pax-5, immunoglobulin heavy-chain, CD19, BSAP, Pax-5 -deficient pro-B cells, N-myc genes