14707
One, located at -50, binds members of the CCACC/Sp1 family and the other, located at -20, binds the erythroid factor GATA-1 .
 ( protein: CCACC/Sp1 family, None) , ( protein: erythroid factor GATA-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: CCACC/Sp1 family, None) , ( protein: erythroid factor GATA-1, None) 