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Desialylation of N- and O-linked glycans in fetuin by influenza virus and NA-VLP. NA activities of H1N1pdm virus and N1-VLP were measured in ELLA. (A) Desialylated N-glycans and O-glycans were detected using HRP-conjugated ECA and PNA lectins, respectively. (B) Relative NA activities at dilution 1:20 were calculated using the serial dilution curves obtained from H1N1pdm virus. Mean values of 2 independent experiments were showed. *p < .05; **p < .01.
