Figure 1. EYFP-Stim1 is organized in a microtubule-like array in HEK293 cells.
A) Confocal image of HEK293 cells overexpressing EYFP-Stim1. The arrowhead indicates what appears to be an “organizing center” of EYFP-Stim1 localization. B) Confocal image of an HEK293 cell that was fixed and immunostained for α-tubulin. The arrowhead indicates the microtubule organizing center near the nucleus, presumably the centrosome. C) Confocal image of an HEK293 cell overexpressing an ER-targeted CFP construct (ER-CFP). Scalebars = 10 μm.