717
In contrast, PU.1 is expressed at high levels not only in monocytes and macrophages but also in neutrophils , indicating that PU.1 can activate gene expression in both major myeloid lineages .
 ( protein: PU.1, None) , ( cell type: major myeloid lineages, None) , ( cell type: neutrophils, None) , ( cell type: monocytes, None) , ( cell type: macrophages, None) , ( protein: PU.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: PU.1, None) , ( cell type: major myeloid lineages, None) , ( cell type: neutrophils, None) , ( cell type: monocytes, None) , ( cell type: macrophages, None) , ( protein: PU.1, None) 