Fig. 1. EYFP-STIM1 is organized in a microtubule-like array in HEK 293 cells. (A) Confocal image of HEK 293 cells overexpressing EYFP-STIM1. The arrowhead indicates what appears to be an `organizing center' of EYFP-STIM1 localization. (B) Confocal image of an HEK 293 cell that was fixed and immunostained for
-tubulin. The arrowhead indicates the microtubule-organizing center near the nucleus, presumably the centrosome. (C) Confocal image of an HEK 293 cell overexpressing an ER-targeted CFP construct (ER-CFP). Bars, 10 µm.