Journal: eLife
Article Title: Targeting DNA topoisomerases or checkpoint kinases results in an overload of chaperone systems, triggering aggregation of a metastable subproteome
doi: 10.7554/eLife.70726
Figure Lengend Snippet: See also and . ( A ) Western blot of whole-cell lysate (WCL) and aggregated proteins isolated from HEK293T cells treated transiently with DMSO or camptothecin (CPT), followed by treatment with the VER-155008 HSP70 inhibitor (10 μM), probed with the indicated antibodies. n = 3. ( B ) Aggregated (silver stain) and WCL (Coomassie) fractions of U2OS wild-type and ATM KO cells, with or without overexpression of HSPB5. ( C ) Quantification of ( B ). ( D ) Representative immunofluorescence pictures of U2OS wild-type and ATM KO cells stably overexpressing HSPB5 or not, stained with ProteoStat (red) and Hoechst (blue). ( E ) Quantification of aggresome signatures in ( D ). ( F ). Representative immunofluorescence pictures of U2OS wild-type and ATM KO cells stably overexpressing HSPB5 or not, stained with anti-FUS (green) and Hoechst (blue). ( G ) Quantification of extranuclear FUS inclusions in ( F ). ( H ) Aggregated (silver stain) and WCL (Coomassie) fractions of HEK293 cells stably overexpressing HSPB5 or not, treated transiently with DMSO or CPT. Three technical repeats are shown here. ( I ) Quantification of three independent biological repeats of ( H ). In ( C ), ( E ), ( G ), and ( I ), squares represent independent biological repeats, bars represent mean ± SEM. p-Values are obtained by two-tailed Student’s t -tests followed by a Bonferroni correction for multiple comparisons. Figure 6—source data 1. Data from . Raw Western blot images with each antibody annotated and cropped parts indicated in red. Figure 6—source data 2. Data from . Raw Coomassie- and silver-stained SDS-PAGE gels and Western blot images with cropped parts indicated in red. Figure 6—source data 3. Data from . Raw Coomassie- and silver-stained SDS-PAGE gels and Western blot images with cropped parts indicated in red.
Article Snippet: ProteoStat staining (ENZO, ENZ-51023-KP050) was performed according to the manufacturer’s instructions.
Techniques: Western Blot, Isolation, Silver Staining, Over Expression, Immunofluorescence, Stable Transfection, Staining, Two Tailed Test, SDS Page