(B) Upper panel, Distribution of distance to nucleus, normalized on cell size, quantified by image (as in a) segmentation (see Material and Method, Confocal microscopy and early/late quantification) of EEA-1+ endosomes. Results are from two independent experiments for a total of 830 early endosomes in 13 shCTL/GFP cells (64 ± 6 endosomes per cell), 719 early endosomes in 10 shSTIM1/GFP cells (60 ± 6 endosomes per cell) and 820 early endosomes in 12 shSTIM1/GFP-STIM1 WT cells (68 ± 6 endosomes per cell) and analyzed by a parametric two-tailed analysis of variance (ANOVA) with Bonferroni post hoc analysis. ANOVA p≤ 0,001; Bonferroni for shCTL/GFP and shSTIM1/GFP p≤ 0,001 *** (orange) and for shSTIM1/GFP and shSTIM1/GFP-STIM1 WT p≤ 0,001 *** (green). Lower panel, Distribution of distance to nucleus, normalized on cell size, quantified by image (as in a) segmentation (see Material and Method, Confocal microscopy and early/late quantification) of EEA-1+ endosomes. Results are from two independent experiments for a total of 820 early endosomes in 12 shSTIM1/GFP-STIM1 WT cells (68 ± 6 endosomes per cell) and 400 early endosomes in 12 shSTIM1/GFP-STIM1 NN cells (33 ± 7 endosomes per cell) and analyzed a two-tailed heteroscedastic Student's t-test, p≤ 0,001 ***. 