1137
At low GSSG levels , T cells cannot optimally activate the immunologically important transcription factor NF kappa B , whereas high GSSG levels inhibit the DNA binding activity of NF kappa B .
 ( cell type: T cells, None) , ( protein: NF kappa B, None) , ( protein: transcription factor, 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:
 ( cell type: T cells, None) , ( protein: NF kappa B, None) , ( protein: transcription factor, None) , ( protein: NF kappa B, None) 