Figure 3. Plk1T210D is unable to phosphorylate BubR1 in vivo.
a Nocodazole-arrested cells were stained with pS676-BubR1 (green) and total BubR1 (red) antibodies (top panels) or total BubR1 (green) and Plk1 (red) antibodies (bottom panels). Scale bar represents 10 microns. b BubR1 and Plk1 signals were quantified from at least 50 kinetochores in 6 cells of each genotype. c Lysates from nocodazole-arrested cells were resolved by SDS-PAGE and immunoblotted with BubR1-specific antibodies.
