Journal: bioRxiv
Article Title: The tubulin poly-glutamylase complex, TPGC, is required for phosphatidyl inositol homeostasis and cilium assembly and maintenance
doi: 10.1101/2025.03.03.641315
Figure Lengend Snippet: A ) sgRNA control and TBC1D19 knockout cells were serum starved for 24 hr and immuno-stained with GT335, anti-acetylated tubulin and anti-Arl13b antibodies. ≥90 cells per sample were analyzed in three independent experiments. Error bars, S.D. ***p ≤ 0.001, **** p ≤ 0.0001. B ) sgRNA control and TBC1D19 knockout cells were serum starved for 24 hr, and immuno-stained with antibodies against GT335, Arl13b, Myo-Va, Cep89, Rab8a, Rabin8, IFT88, Cep290 and RPGRIP1L. Scale bar, 1µm. C ) sgRNA control and TBC1D19 knockout cells were serum starved as in panels A and B and visualized by staining with GT335 and antibodies against CP110. Scale bar, 1µm. N ≥ 90 cells per sample were analyzed in three independent experiments. Error bars, S.D. D ) sgRNA control and TBC1D19 knockout cells were serum starved for 24 hr, and immunostained with antibodies against Rab34 and Arl13b. Scale bar, 1µm. E ) sgRNA control and TBC1D19 knockout cells were serum starved as in panels A-C and immunostained with antibodies against GT335 and Arl13b. Scale bar, 1µm. F ) Primary cilia in sgRNA control and TBC1D19 knockout cells were examined by transmission electron microscopy (TEM) after 24 hr of serum starvation. Images of TBC1D19 knockout cilia from two consecutive sections are shown.
Article Snippet: Mouse anti-α-tubulin (1:10000 for WB 66031-1-Ig), rabbit anti-Arl13b (1:2000 for IF and 1:1000 for WB, 17711-1-AP), rabbit anti-Rab8a (1:50 for IF, 55296-1-AP), rabbit anti-IFT88 (1:500 for IF, 13967-1-AP), rabbit anti-INPP5E (1:1000 for WB and 1:1000 for IF, 17797-1-AP), mouse anti-β-actin (1:10000 for WB, 66009-1-Ig PT), mouse anti-GAPDH (1:10000 for WB, 60004-1-Ig), rabbit ant-CCP1 (1:1000 for WB, 14067-1-AP), Rabbit anti-TBC1D19 (1:1000 for WB, 21085-1-AP) and rabbit anti-Tulp3 (1:1000 for WB, 1:150 for IF, 13637-1-AP), RPGRIP1L (1:150 for IF, 55160-1-AP) were from Proteintech.
Techniques: Control, Knock-Out, Staining, Transmission Assay, Electron Microscopy