Journal: Life Science Alliance
Article Title: CTPS2 regulates CTP synthetase activity by interacting with CTPS1
doi: 10.26508/lsa.202403117
Figure Lengend Snippet: (A) CTPS1+2-KO HEK cells were transiently co-transfected with plasmids coding GFP-CTPS2 (in green) and pLVX vectors for CTPS1, CTPS2, or CTPS1 H355A (expressing mCherry as a reporter of transfection in red) in the absence of any treatment. Data from one representative experiment of two independent experiments. Bar graphs on the right panel correspond to the filament–cytoophidium/cell quantification from the images on the left with indicated numbers of cells and filaments–cytoophidia counted (n=) in three independent fields/images for each condition independently of the mCherry staining. Magnification 40x, scale bar: 25 μm. (B, C) CTPS1+2-KO cells stably expressing GFP-CTPS1, GFP-CTPS2, GFP-CTPS1 H355A , or GFP-CTPS2 H355A . Cells were then maintained in culture without cytidine. (B) Histograms of GFP expression of different cell lines. Data in the right and left panels are from the same experiment with the same “nontransfected” control histogram, which is representative of two independent experiments. (C) Confluency curves as percentages (%) showing the proliferation of different cell lines. Confluency was measured using an IncuCyte Zoom system. Cells were seeded for 24 h, then treated or not (untreated) with the indicated concentrations of 3-deazauridine (3-DU) or 200 μM cytidine. (A) Data as means ± SD. Mann–Whitney statistical tests, * P < 0.05 and ** P < 0.01. n = is indicated in the panel.
Article Snippet: The cDNAs were verified by sequencing and inserted into a bicistronic lentiviral expression vector encoding mCherry as a reporter (pLVX-EF1α-IRES-mCherry Vector; Clontech).
Techniques: Transfection, Expressing, Staining, Stable Transfection, Control, MANN-WHITNEY