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Gliding frequency for M. pneumoniae cells attached to slides chemically functionalized with α-2,3-sialyllactose. Each bar represents the mean and positive standard error of the mean for gliding frequency for three separate experiments. SP4, data for chamber slides coated with serum glycoproteins in SP4 growth medium, which served as a positive control. *P < 0.001 for the indicated sialyllactose densities.
