156
The protein products of this gene contain the basic-helix-loop-helix motif characteristic of a large family of transcription factors that bind to the canonical DNA sequence CANNTG as protein heterodimers .
 ( DNA: canonical DNA sequence CANNTG, None) , ( protein: basic-helix-loop-helix motif, None) , ( protein: protein products, None) , ( protein: protein heterodimers, None) , ( protein: transcription factors, 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: canonical DNA sequence CANNTG, None) , ( protein: basic-helix-loop-helix motif, None) , ( protein: protein products, None) , ( protein: protein heterodimers, None) , ( protein: transcription factors, None) 