2261
ATRA failed to induce CD38 expression in a mutant subclone of the HL-60 myeloid leukemia cell line (designated HL-60R ) that is relatively resistant to ATRA -induced granulocytic differentiation .
 ( protein: CD38, None) , ( cell line: HL-60R, None) , ( cell line: HL-60 myeloid leukemia cell line, None) , ( cell line: mutant subclone, 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: CD38, None) , ( cell line: HL-60R, None) , ( cell line: HL-60 myeloid leukemia cell line, None) , ( cell line: mutant subclone, None) 