9509
For this purpose, human GATA-3 , either recombinant or in nuclear extracts , and three natural GATA elements of the HIV-1 long terminal repeat ( sites 1 , 2 , and 3 ) were chosen, in which only site 2 is a noncanonical GATA site .
 ( DNA: HIV-1 long terminal repeat, None) , ( DNA: natural GATA elements, None) , ( DNA: site 2, None) , ( protein: human GATA-3, None) , ( DNA: GATA site, 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: HIV-1 long terminal repeat, None) , ( DNA: natural GATA elements, None) , ( DNA: site 2, None) , ( protein: human GATA-3, None) , ( DNA: GATA site, None) 