Colocalization of Sec15p and Sec4p upon Sec15p
overexpression. Wild-type yeast (A and B) or yeast overexpressing
Sec15p (C and D) or cooverexpressing Sec15p with Sec10ΔC (E and F) or
with Sec10CT (G and H) were grown in galactose for 10 h to induce
overexpression of the proteins. Cells were then processed for
immunofluorescence as described in MATERIALS AND METHODS. Double
labeling was performed with monoclonal anti-Sec4p antibodies (A, C, E,
and G) and polyclonal anti-Sec15p antibodies (B, D, F, and H).