1640
We now report the characterization of a second essential positive regulatory element located between nucleotides -137 and -64 that binds Elf-1 and HMG-I(Y) .
 ( DNA: essential positive regulatory element, None) , ( protein: HMG-I(Y), None) , ( DNA: nucleotides -137 and -64, None) , ( protein: Elf-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:
 ( DNA: essential positive regulatory element, None) , ( protein: HMG-I(Y), None) , ( DNA: nucleotides -137 and -64, None) , ( protein: Elf-1, None) 