Journal: Cell reports
Article Title: Uncovering genetic interactions in the DNA repair network in response to endogenous damage and ionizing radiation
doi: 10.1016/j.celrep.2025.116850
Figure Lengend Snippet: (A) Distribution of the observed phenotypes depleted in the basal screen results, indicating where the MRE11A-UBR5 gene pair falls relative to other depleted interactions. (B) Ranked observed phenotypes from the basal screen for both UBR5 and MRE11A . Blue/red regions highlight significantly enriched/depleted UBR5 -gene and MRE11A -gene interactions, respectively. Blue and red regions highlight gene combinations that are enriched above (blue) or depleted below (red) one standard deviation (+0.6981 and −0.7791) of the mean of all basal interactions and possess a Fisher-combined p < 0.05. (C) Time-lapse images of growth from Dox-induced dual-guide vectors with NT-1 x UBR5 -g2 or NT-1 x NT-2 in nuclear-EGFP-expressing cells co-cultured with nuclear-RFP-expressing cells grown in DMSO or 6.25 μM mirin (+mirin). Images are from one well per condition over the first 72 h of growth. Scale bar: 100 μM. (D) Measurements are calculated as the log 2 fold change (log 2 FC) of Dox induced over uninduced growth for the labeled condition, relative to the growth of co-cultured RFP+ cells, as seen in (C). Data represent mean ± SEM of 3 biological repliactes. The gray bar indicates the 72 h of growth shown in (C), though imaging continued. (E) Comparative growth differences at 96 h of two separate, inducible UBR5 guides from experiments performed similarly to those shown in (C) and (D). Bars are only shown for Dox-treated conditions but are normalized to uninduced, DMSO-treated control wells for each genotype and replicate. Mirin: 5 μM. Blue prediction bars are calculated from an additive model assuming no interaction, with the average effect of mirin on NT cells plus the average effect of UBR5 depletion for each guide and replicate. Data represent mean ± SEM of 2 biological replicates, and statistics represent a two-way ANOVA with Dunnett multiple comparisons test; p = 0.0277. (F) Western blot depicting robust UBR5 KO in two selected HT1080-6TG clones. (G) Dose curve of HT1080-6TG clones shown in (F) grown in increasing doses of mirin in a colony formation assay. IC50 was calculated from a sigmoidal interpolation of all datasets. Error bars: ± SEM from three biological replicates. Statistics match in color the clone they reference, relative to NT cells. Statistics: a two-way ANOVA with Dunnett’s multiple comparisons test between NT-treated cells and UBR5 -KO clones at each concentration; * p < 0.01 and **** p < 0.0001. (H) Western blot showing UBR5 depletion in U2-OS cells electroporated with either an sgNT-RNP or an sg UBR5 -RNP. (I) Log 2 of the relative confluence over time (relative to DMSO) for sgNT-RNP- or sg UBR5 -RNP-treated U2-OS cells from (H), grown with 25 μM mirin over 120 h. The shaded area around each solid line indicates the SEM from three biological replicates. Statistics: a two-way ANOVA at 120 h with Šídák’s multiple comparisons test; p = 0.0317. See also .
Article Snippet: U2-OS , ATCC , HTB-96.
Techniques: Standard Deviation, Expressing, Cell Culture, Labeling, Imaging, Control, Western Blot, Clone Assay, Colony Assay, Concentration Assay
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