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  • Title: Isolation and characterization of a CNBr cleavage peptide of influenza viral hemagglutinin stimulatory for mouse cytolytic T lymphocytes.
    Author: Wabuke-Bunoti MA, Fan DP.
    Journal: J Immunol; 1983 May; 130(5):2386-91. PubMed ID: 6601150.
    Abstract:
    A polypeptide fragment obtained by CNBr cleavage of the hemagglutinin from A/JAPAN/305/57 influenza virus has been purified by using high performance liquid chromatography. The first five N-terminal amino acids as determined by sequential Edman degradations have localized this peptide to the HA2 subunit of the hemagglutinin between residues 103 and 123. This peptide, denoted HA2(103-23), can generate both proliferative and cytolytic responses from spleen cells of BALB/c mice previously immunized with A/JAPAN/305/57. These results demonstrate that a single nonglycosylated fragment of the influenza hemagglutinin as small as 21 amino acid residues is capable of being recognized as an antigenic determinant to generate influenza CTL from primed precursors.
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