11628
Presentation of viral peptide and protein segregated with DQA1 allele , because cell lines bearing DQA1*0501/DQB1*0201 heterodimers presented antigen in proliferation and cytotoxicity assays much more efficiently than cell lines bearing DQA1*0201/DQB1*0201 .
 ( protein: DQA1*0201/DQB1*0201, None) , ( DNA: DQA1 allele, None) , ( protein: DQA1*0501/DQB1*0201 heterodimers, None) , ( cell line: cell lines, 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: DQA1*0201/DQB1*0201, None) , ( DNA: DQA1 allele, None) , ( protein: DQA1*0501/DQB1*0201 heterodimers, None) , ( cell line: cell lines, None) 