14240
In gel-shift assays , the -1280 element and the c-fos SRE cross -competed, whereas their functional and binding mutants did not.
 ( DNA: c-fos SRE cross, None) , ( DNA: binding mutants, None) , ( DNA: -1280 element, 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: c-fos SRE cross, None) , ( DNA: binding mutants, None) , ( DNA: -1280 element, None) 