2158
Although these heterodimers do not recognize a classical thyroid hormone response element ( TRE ) characterized by direct repeat separated by four nucleotides ( DR+4 ), PPAR behaves as a dominant negative regulator of thyroid hormone ( TH ) action .
 ( DNA: thyroid hormone response element, None) , ( DNA: TRE, None) , ( protein: heterodimers, None) , ( protein: PPAR, None) , ( DNA: DR+4, None) , ( DNA: direct repeat, 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: thyroid hormone response element, None) , ( DNA: TRE, None) , ( protein: heterodimers, None) , ( protein: PPAR, None) , ( DNA: DR+4, None) , ( DNA: direct repeat, None) 