9973
It is our contention that CD is triggered by the binding of one or more gliadin peptides to CD -associated HLA class II molecules .
 ( protein: CD -associated HLA class II molecules, 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: CD -associated HLA class II molecules, None) 