8524
The bare lymphocyte syndrome ( BLS ) is characterized by the absence of MHC class II transcription and humoral- and cellular- mediated immune responses to foreign antigens.
 ( protein: MHC class II, 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: MHC class II, None) 