8593
The B29 ( immunoglobulin beta-chain ) gene is a genetic target for early B-cell factor .
 B29 ( immunoglobulin beta-chain ) gene, early B-cell factor, immunoglobulin beta-chain
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:
 B29 ( immunoglobulin beta-chain ) gene, early B-cell factor, immunoglobulin beta-chain