13503
Altered DNA-binding specificity mutants of EKLF and Sp1 show that EKLF is an activator of the beta-globin locus control region in vivo.
 ( protein: EKLF, None) , ( protein: EKLF, None) , ( protein: Altered DNA-binding specificity mutants, None) , ( DNA: beta-globin locus control region, 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: EKLF, None) , ( protein: EKLF, None) , ( protein: Altered DNA-binding specificity mutants, None) , ( DNA: beta-globin locus control region, None) 