7780
Finally, we conclude that this effect of CIITA is cell-type specific, since expression of CIITA is not required for normal occupation of MHC class II promoters in B lymphocytes .
 ( protein: CIITA, None) , ( DNA: MHC class II promoters, None) , ( cell type: B lymphocytes, None) , ( cell type: MHC class II, None) , ( protein: CIITA, 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:
 ( protein: CIITA, None) , ( DNA: MHC class II promoters, None) , ( cell type: B lymphocytes, None) , ( cell type: MHC class II, None) , ( protein: CIITA, None) 