12656
The complexes consisted of p50/p50 homodimers and p50/p65 heterodimers.
 ( protein: p50/p50 homodimers, None) , ( protein: 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: p50/p50 homodimers, None) , ( protein: complexes, None) 