14790
The Sp1 transcription factor binds the CD11b promoter specifically in myeloid cells in vivo and is essential for myeloid-specific promoter activity .
 ( protein: Sp1 transcription factor, None) , ( DNA: myeloid-specific promoter, None) , ( DNA: CD11b promoter, None) , ( protein: transcription factor, 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: Sp1 transcription factor, None) , ( DNA: myeloid-specific promoter, None) , ( DNA: CD11b promoter, None) , ( protein: transcription factor, None) 