Fig. 3. EC81 colocalizes with Golgi and post-Golgi markers. MDCK cells stably expressing EC81 were fixed and incubated with rat monoclonal antibodies against HA, the ER marker GRP78, the Golgi markers GM130 or golgin-97, post-Golgi compartment markers EEA1 or LysoTracker Red DND-99, or β-catenin.