14926
It is concluded that the bcr1 type-pml/RAR alpha fusion protein of APL contains an antigenic site, absent from the normal parent molecules and recognized by human CD4+ lymphocytes .
 ( protein: bcr1 type-pml/RAR alpha fusion protein, None) , ( cell line: APL, None) , ( cell line: human CD4+ 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: bcr1 type-pml/RAR alpha fusion protein, None) , ( cell line: APL, None) , ( cell line: human CD4+ lymphocytes, None) 