9193
MATERIALS AND METHODS: Peptides derived from oncogenic proteins were screened for the presence of HLA binding motifs ; actual binding were evaluated by HLA stabilization experiments using transfectants and specific anti-HLA antibodies .
 ( protein: oncogenic proteins, None) , ( protein: anti-HLA antibodies, None) , ( protein: HLA binding motifs, 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: oncogenic proteins, None) , ( protein: anti-HLA antibodies, None) , ( protein: HLA binding motifs, None) 