8399
Class II major histocompatibility (class II) genes are regulated in a B-cell-specific and gamma interferon-inducible fashion .
 ( DNA: Class II major histocompatibility (class II) genes, 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: Class II major histocompatibility (class II) genes, None) 