[Structure of major oligomannoside chains of influenza virus A/Leningrad/385/80 (H3 N2) hemagglutinin].

The structure of four main oligomannosidic carbohydrate chains isolated from influenza virus A/Leningrad/385/80 (H3N2) hemagglutinin has been elucidated using 1H NMR spectroscopy. The data obtained suggest that splitting off four alpha 1-2 linked mannose residues under alpha-mannosidase action is the limiting and selective stage of transformation of high mannose carbohydrate chain to complex chain during biosynthesis of glycoproteins.