9187
Temporal control of IgH gene expression in developing B cells by the 3' locus control region .
 ( DNA: 3#$%# locus control region, None) , ( cell type: developing B cells, None) , ( DNA: IgH gene, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: 3#$%# locus control region, None) , ( cell type: developing B cells, None) , ( DNA: IgH gene, None) 