13397
These results indicate that, although purified peptide/glycoprotein 96 complexes are potent immunogens, the mechanism of CTL cross-priming in vivo does not depend upon antigenic peptides in the ER of immunizing cells .
 ( cell type: immunizing cells, None) , ( protein: peptide/glycoprotein 96 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:
 ( cell type: immunizing cells, None) , ( protein: peptide/glycoprotein 96 complexes, None) 