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Binding of sialylglycopolymers 3′SL-PAA (solid lines) and 6′SLN-PAA (dotted lines) by H3 subtype influenza virus strains A/duck/Hokkaido/33/80 and A/Los Angeles/2/87. The binding assay is described in Materials and Methods. The upper panels represent the primary data (dependence of absorbancy in the wells, A490, versus concentration of the polymer); the lower panels show the corresponding Scatchard plots.
