4687
These binding studies were paralleled by specific T cell recognition of the class II-peptide complex , in which the substituted peptide abolished T cell reactivity , which was directed to the DQ3.2 -peptide complex , whereas the same T cell clone recognized the substituted peptide presented by DQ3.3 , a class II restriction element differing from DQ3.2 only at residue 57 .
 ( protein: DQ3.2 -peptide complex, None) , ( protein: class II-peptide complex, None) , ( cell line: T cell clone, 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: DQ3.2 -peptide complex, None) , ( protein: class II-peptide complex, None) , ( cell line: T cell clone, None) 