Scientific Background | Influenza HA (110 - 119) is a synthetic influenza virus-derived antigenic peptide. Short peptides derived from influenza proteins such as matrix protein, nucleoprotein, and hemagglutinin have been used extensively to define MHC-restricted T-cell epitopes. Classic studies showed that synthetic influenza peptides can substitute for intact viral antigen in cytotoxic T-cell recognition and helped establish sequence motifs and anchor-residue requirements for HLA binding. The immune relevance of an individual peptide is allele-, strain-, and sequence-dependent. |
Experimental Notes | For antigenic or viral peptides, HLA restriction, cellular response, and immunological activity should not be inferred solely from the source protein name; the exact sequence, residue numbering, strain or genotype, and experimental system should be considered. For labeled or otherwise modified variants, the modification may also affect binding or assay behavior. |
