5565
We have examined the influence of the affinity and concentration of exogenous peptide and the density of specific MHC molecules on the proliferation of a CD4+, DQA1*0501/DQB1*0201 (DQ2.1)-restricted, HSV-2 -specific T cell clone .
 ( cell line: CD4+, DQA1*0501/DQB1*0201 (DQ2.1)-restricted, HSV-2 -specific T cell clone, None) , ( protein: MHC 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:
 ( cell line: CD4+, DQA1*0501/DQB1*0201 (DQ2.1)-restricted, HSV-2 -specific T cell clone, None) , ( protein: MHC molecules, None) 