708
Neutrophils and monocytes express high levels of PU.1 ( Spi-1 ) but not Spi-B .
 ( protein: Spi-B, None) , ( protein: PU.1, None) , ( cell type: Neutrophils, None) , ( cell type: monocytes, None) , ( protein: Spi-1, 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: Spi-B, None) , ( protein: PU.1, None) , ( cell type: Neutrophils, None) , ( cell type: monocytes, None) , ( protein: Spi-1, None) 