2974
I kappa B proteins inhibit DNA binding and prevent nuclear uptake of NF-kappa B complexes .
 ( protein: I kappa B proteins, None) , ( protein: NF-kappa B complexes, 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: I kappa B proteins, None) , ( protein: NF-kappa B complexes, None) 