1025
The protein components of this complex are specifically competed by an AP1 consensus motif and were shown by supershift to include c-Jun and c-Fos , suggesting that this binding site is an AP1 motif and that the Jun and Fos families of transcription factors play a role in the regulation of the kappa light chain gene .
 ( protein: c-Jun, None) , ( protein: c-Fos, None) , ( protein: transcription factors, None) , ( DNA: binding site, None) , ( DNA: kappa light chain gene, None) , ( DNA: AP1 motif, None) , ( DNA: AP1 consensus motif, 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: c-Jun, None) , ( protein: c-Fos, None) , ( protein: transcription factors, None) , ( DNA: binding site, None) , ( DNA: kappa light chain gene, None) , ( DNA: AP1 motif, None) , ( DNA: AP1 consensus motif, None) 