2179
As documented in the accompanying paper (Klug et al., this issue), an active v-abl protein also suppresses the activity of NF-kappa B /rel and expression controlled by the kappa intron enhancer .
 ( protein: NF-kappa B /rel, None) , ( protein: NF-kappa B, None) , ( DNA: kappa intron enhancer, None) , ( protein: v-abl protein, 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: NF-kappa B /rel, None) , ( protein: NF-kappa B, None) , ( DNA: kappa intron enhancer, None) , ( protein: v-abl protein, None) 