13458
Attenuation of HLA-DR expression by mononuclear phagocytes infected with Mycobacterium tuberculosis is related to intracellular sequestration of immature class II heterodimers .
 ( cell type: mononuclear phagocytes, None) , ( protein: immature class II heterodimers, None) , ( protein: HLA-DR, 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:
 ( cell type: mononuclear phagocytes, None) , ( protein: immature class II heterodimers, None) , ( protein: HLA-DR, None) 