Figure 5.
Surface NCL contains more 9-O-Ac-Sia than cytoplasmic 100 kDa NCL. (a) Quantitative comparison of 9-O-Ac-Sia-containing NCL immunoprecipitated from an equal cell equivalent of cell surface and intracellular fractions. (b) Western blot analysis using the detection reagents indicated to the left on total cell lysates, cell surface proteins isolated by live cell biotinylation and streptavidin-column isolation and their intracellular fractions. Note: equal amounts of protein lysate were loaded in each lane. Blots were sequentially stripped and re-probed.