Graus, Y.M.F.

influenza virus epitope donor response hla-a influenza virus hla-b target cells compound peptide target group clone frequency effect assay cytotoxic virus-specific concentration stimulation 1.0 proliferation t-cell immunol 37  c ctl response cytotoxic t lymphocytes r 10f bioactive compounds ctl activity ctlp frequency activity class strain 2.5 105 pbmc antibody control presence percentage bioactive variant hla-a 2-negative donors production result molecule chlorogenic acid infection np 418-426/1980 epitope ctl clone number study increase effector recognition sigma chlorogenic group iii ratio addition table 1/np clone protein immunity plate virol virus-infected resvir function 418-426/1980 antigen influenza virus epitopes 1.0 mg /ml ctl assay flow cytometry influenza virus-infected pbmc np 418-426 epitope 418-426/1972 phenotype mutation