12891
In this study, we discovered a novel regulatory element located at -120 of the CD95L promoter which contains DNA binding sites for SP-1 and a yet unknown inducible factor .
 ( protein: SP-1, None) , ( DNA: regulatory element, None) , ( DNA: CD95L promoter, None) , ( DNA: DNA binding sites, None) , ( protein: inducible factor, None) , ( protein: CD95L, None) , ( DNA: -120, 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: SP-1, None) , ( DNA: regulatory element, None) , ( DNA: CD95L promoter, None) , ( DNA: DNA binding sites, None) , ( protein: inducible factor, None) , ( protein: CD95L, None) , ( DNA: -120, None) 