9187
Temporal control of IgH gene expression in developing B cells by the 3' locus control region .
 3' locus control region, developing B cells, IgH gene
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:
 3' locus control region, developing B cells, IgH gene