2506
From a consecutive series of 350 cases of adult de novo acute myeloid leukemia ( AML ), we identified 20 cases (6%) with a unique immunophenotype: CD33+, CD56+, CD11a+, CD13lo, CD15lo, CD34+/-, HLA-DR -, CD16 -.
 ( protein: HLA-DR, None) , ( protein: CD16, 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: HLA-DR, None) , ( protein: CD16, None) 