2981
Lack of T-cell-mediated recognition of the fusion region of the pml/RAR-alpha hybrid protein by lymphocytes of acute promyelocytic leukemia patients .
 ( protein: pml/RAR-alpha hybrid protein, None) , ( cell type: lymphocytes, 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: pml/RAR-alpha hybrid protein, None) , ( cell type: lymphocytes, None) 