Baf A1 inhibits the nocodazole-induced
redistribution of Golgi enzymes. Control and Baf A1-treated NRK cells
were either fixed directly or after a further 30 or 90 min incubation
in the presence of the microtubule-depolymerizing drug nocodazole (5
μM). The cells were stained for immunofluorescence microscopy using
antibodies against Golgi mannosidase II, and the number of scattered,
peripheral Golgi structures was determined as described in MATERIALS
AND METHODS. Figure 1, A and C, also illustrates the typical
distribution of mannosidase II in control and Baf A1-pretreated cells,
respectively, before the addition of nocodazole (0 min time point).