422
This region is termed the CK-1 or CD28RE and appears to bind specific members of the NF-kappa B family of transcription factors .
 ( protein: transcription factors, None) , ( DNA: CK-1, None) , ( protein: NF-kappa B family, None) , ( DNA: CD28RE, None) , ( protein: NF-kappa B, 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 factors, None) , ( DNA: CK-1, None) , ( protein: NF-kappa B family, None) , ( DNA: CD28RE, None) , ( protein: NF-kappa B, None) 