13046
Switching is hampered by CD30 coengagement , possibly through interference with the CD40 -mediated NF-kappaB -dependent transcriptional activation of downstream C(H) genes .
 ( protein: CD40, None) , ( DNA: downstream C(H) genes, None) , ( protein: CD30, None) , ( protein: NF-kappaB, 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: CD40, None) , ( DNA: downstream C(H) genes, None) , ( protein: CD30, None) , ( protein: NF-kappaB, None) 