8596
The lack of B29 transcripts , coding for the beta subunit of the B-cell receptor complex, in pro-B cells from EBF -deficient mice suggested that B29 might be a genetic target for EBF .
 EBF, pro-B cells, EBF, beta subunit, B29 transcripts
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:
 EBF, pro-B cells, EBF, beta subunit, B29 transcripts