2708
The presence of multiple potential binding sites for MS-2 in the promoter regions of a wide range of genes expressed in mature myeloid cells suggests this factor plays a general role in myeloid differentiation .
 ( protein: MS-2, None) , ( cell type: mature myeloid cells, 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: MS-2, None) , ( cell type: mature myeloid cells, None) 