13203
Many transcription factors contain similar structural protein sequences , and we have used an RT-PCR -based approach to isolate sequences, from transcription factor gene families which share similar domains.
 ( protein: transcription factor, None) , ( protein: structural protein sequences, 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:
 ( protein: transcription factor, None) , ( protein: structural protein sequences, None) , ( protein: transcription factors, None) 