(G) Confocal microscopy analysis of wild-type ECs, transiently transfected with GFP-STIM1 WT or, NN or ΔCC1-3/WT (ΔCC/WT) together with mCherry-P150Glued. Scale bar = 10 μm. Right insets are shown to highlight MT-bound p150Glued+ punctae (arrows), colocalized with STIM1. Scale bar = 5 μm.