Journal: bioRxiv
Article Title: Patching up the nucleus: a novel role for PMLII in nuclear envelope rupture repair
doi: 10.1101/2025.01.24.634656
Figure Lengend Snippet: a) Representative lamin B1 and PML confocal immunofluorescence images from human cell lines. The arrows indicate areas of PML accumulation at NE areas devoid of lamina. Scale bar: 10 μm. b) Different condensate types observed upon overexpression of EGFP-PMLII in HeLa cells including widefield immunofluorescent images of lamin B1. Scale bar: 10 μm. c) Quantification of condensate types observed for PMLI or PMLII overexpression in HeLa cells. N=3, for EGFP-PMLI and EGFP-PMLII and N=2 for FLAG-PMLI and FLAG-PMLII. Mean +/-sd is indicated. d) Representative, lamin B1 and sp100 widefield immunofluorescence images of HeLa cells overexpressing EGFP-PMLI or EGFP-PMLII. Scale bar: 10 μm. e) Quantification of relative lamin B1 intensity and sp100 intensity at puncta or patches in HeLa cells overexpressing EGFP-PMLI (N=2 (n=18, 32 cells)) and EGFP-PMLII (puncta; N=3 (n=21,14,13 cells), patches; N=3(n= 11,17,17 cells)). Mean +/-sd are indicated, independent experiments are indicated by the different symbols. P-value was calculated using a one-way ANOVA test followed by Tukey’s post hoc test (**P<0.01, ***P< 0.001). f) Representative, lamin B1 confocal immunofluorescence images of HeLa cells co-overexpressing EGFP-PMLI and FLAG-PMLII. Scale bar: 10 μm. g) Quantification of PMLI/PMLII intensities per condensate type. n=112, 3,6,40, 39 for types 1-5 respectively. Data are presented from three independent experiments indicated by the triangels, squares and cirkels. Median is indicated.
Article Snippet: The following primary antibodies were used: mouse anti-lamin A/C (Santa Cruz, sc-376248, 1/500), mouse anti-lamin B1 (Santa Cruz, sc-365214, 1/500), mouse anti-FLAG (Sigma Aldrich, F1804, 1/1000), rabbit anti-PML (Abcam, ab179466, 1/500) and rabbit anti-sp100 (Atlas antibodies, HPA016707, 1/500).
Techniques: Immunofluorescence, Over Expression