EMBO/SourceData huggingface dataset:
Figure 7Co-IP assays revealing the presence of vsiRNA-containing HvAGO1-HvSDN1-P17K complex in BYDV-infected WT, SnRK1K139R-YFP-L13, and SnRK1-YFP-L4 plants, with mock-inoculated SnRK1-YFP-L4 individuals as controls. The immunoprecipitates, prepared using anti-HvAGO1 antibody, were analyzed for the presence of HvSDN1 (by immunoblotting with anti-HvSDN1 antibody), P17K (asterisk) and 17K (arrowhead) (using Phos-tag SDS-PAGE coupled immunoblotting), and BYDV vsiRNA (by sRNA blotting). Compared with WT control, the HvAGO1 immunoprecipitates derived from SnRK1-YFP-L4 contained higher levels of P17K and vsiRNA but less amount of HvSDN1, whereas the reverse was observed for SnRK1K139R-YFP-L13.Co-IP assays demonstrating that the interaction between HvAGO1 and HvSDN1 was weakened by P17K. The immunoprecipitates were prepared using anti-HvSDN1 antibody from the panel of plants shown in (B). Relative to WT control, the HvSDN1 immunoprecipitates derived from SnRK1-YFP-L4 contained much less HvAGO1, whereas the opposite was observed for SnRK1K139R-YFP-L13.17K5D compromised the interaction between HvSDN1 and the PAZ domain of HvAGO1. The LUC signal resulted from the interaction between HvSDN1-HvAGO1 PAZ domain was significantly decreased in the presence of 17K5D but not that of 17K.
Figure 8Verification of 17K5D expression in the transgenic lines 17K5D-L3 and -L7 by immunoblotting with anti-17K antibody.B-D Comparison of BYDV disease symptoms including plant growth (B), plant height (C), and maximum root length (D) between two transgenic lines and WT control at 21 dpi.protein (F) levels of viral CP gene in the BYDV-infected samples shown in (B). BYDV vsiRNA abundance in the set of samples shown in (B), as detected by sRNA blotting at 14 dpi.Relative to TaSDN1-DD line, TaSDN1 protein was decreased in TaSDN1-Dd and TaSDN1-dd mutants, with a stronger reduction found for TaSDN1-dd. The reactive TaSDN1 protein detected in TaSDN1-dd was caused by the un-mutated TaSDN1-A and -B homoeologs.protein (M) levels of BYDV CP gene in TaSDN1-DD, TaSDN1-Dd and TaSDN1-dd plants at 21 dpi. BYDV vsiRNA abundance in TaSDN1-DD, TaSDN1-Dd, and TaSDN1-dd plants detected by sRNA blotting at 21 dpi of BYDV.
Figure 1The graphs depict the recovery of CAR1-mcherry (left) and tPH-CynA-KikGR (right). Mean ± SEM is shown for n = 2 cells.Time-lapse confocal images of tPH-CynA-KikGR expressing AX3 cells showing docking events at the back of a migrating Dictyostelium cell. Front and back of the cell are shown.
Figure 2Time-lapse confocal images of AX3 cell co-expressing PH-Crac-GFP (green) and another established PI(3,4)P2 biosensor tPH-TAPP1-RFP (red). Box shows the vesicle.Time-lapse confocal images of tPH-CynA-KikGR (green) expressing wild-type AX3 cells. FM4-64 (red) was added at time 0 during live cell imaging. Front and back of the cell are shown. Box shows the vesicle.
Figure 3Time-lapse confocal images of wild-type AX3 cells expressing tPH-CynA-KikGR (green) and PH-crac (red) before and after PI3K inhibition by 5 µM Wortmannin.Confocal images of tPH-CynA-KikGR (green) and PH-Crac (red) expressing wild-type Dictyostelium AX3 cells (left) and PI3K1-2- Dictyostelium cells (right) treated with 5 µM Latrunculin A.
Figure 4Time-lapse confocal images showing dynamic localization of PI(3,4)P2. Nocodazole was added at time 0 during the live cell imaging.   Quantification of vesicle number, vesicle number/min, and vesicle lifetime (s) from experiment in E. T-test was carried out by GraphPad Prism, **P ≤ 0.01 versus After Nocodazole group; mean±SEM (n = 10).   (L) Representative confocal images of tPH-CynA-KikGR in wild-type Dictyostelium AX2 or RacH− cells treated with 5 μM latrunculin A Scale bar: 5 μm. (M) Ratio of membrane to cytosol intensity of tPH-CynA-KikGR in wild-type Dictyostelium AX2 and RacH− cells. T-test was carried out by GraphPad Prism, ****P ≤ 0.0001 versus AX2 group; mean ± SEM (n = 33).
Figure 5Time-lapse confocal images of tPH-CynA-KikGR expressing Dictyostelium AX3 cells. The macropinosome at the front of the cell was photoconverted at time 0. White arrow points to PI(3,4)P2 localization at the back of the membrane. Cell front and back are shown, box showing the photoconverted region.
Figure 2A, B MCF-7 cells expressing NT, INPP4B #1 or INPP4B #2 shRNA were fixed and immunostained with recombinant GST-2xFYVE and LAMP2 antibodies, and co-stained with DAPI (A). Data represent the proportion of 2xFYVE+ lysosomes (n=3 experiments, >40 cells/experiment) (B). Arrows indicate co-localization between 2xFYVE and LAMP2. Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in A, p values determined by one-way ANOVA with Tukey post hoc test in BC MCF-7 cells were treated with 0.02% (w/v) saponin for 30 seconds, then fixed and immunostained with INPP4B and either LAMP1 or CD63 antibodies, and co-stained with DAPI. Arrows indicate co-localization between INPP4B and CD63. Data information: The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in C,D, E MCF-7 cells co-expressing GFP-INPP4B or GFP-vector, and Hrs or NT shRNA, were fixed and immunostained with recombinant GST-2xFYVE and LAMP2 antibodies, and co-stained with DAPI (D). Data represent the proportion of 2xFYVE+ lysosomes (n=3 experiments, >30 cells/experiment) (E). Arrows indicate co-localization between 2xFYVE and LAMP2. Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in D, p values determined by one-way ANOVA with Tukey post hoc test inF, G MCF-7 cells co-expressing GFP-INPP4B or GFP-vector, and Hrs or NT shRNA, were fixed and immunostained with recombinant GST-2xFYVE and CD63 antibodies, and co-stained with DAPI (F). Data represent the proportion of 2xFYVE+ late endosomes (n=3 experiments, >30 cells/experiment) (G). Arrows indicate co-localization between 2xFYVE and LAMP2. Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in F. p values determined by one-way ANOVA with Tukey post hoc test in G,H, I MCF-7 cells co-expressing GFP-INPP4B or GFP-vector, and Hrs or NT shRNA, were lysed and immunoblotted with LC3B antibodies, and GAPDH antibodies as a loading control (H). Data represent the relative LC3B-II levels normalized to GAPDH, and expressed relative to GFP-vector;NT shRNA cells which were assigned an arbitrary value of 1 (n=3 experiments) (I). Data information: Data is presented as mean ± SD. p values determined by one-way ANOVA in I.
Figure 3A, B MCF-7 cells expressing GFP-INPP4B or GFP-vector were fixed and immunostained with LAMP1 or LAMP2 antibodies, and co-stained with DAPI and phalloidin (A). Data represent the number of LAMP1+ or LAMP2+ puncta relative to cell area (µm2) (n=3 experiments, >50 cells/experiment) (B). Data information: Data is presented as mean ± SD. Scale bar is 10 µm in A, p values determined by two-tailed unpaired t test in B,C, D Snapshots of Magic Red cathepsin B substrate and Hoechst 33342 captured in live MCF-7 cells expressing GFP-INPP4B or GFP-vector (C). Data represent the number of Magic Red cathepsin B+ puncta per cell (n=3 experiments, >50 cells/experiment) (D). Data information: Data is presented as mean ± SD. Scale bar is 10 µm in C, p values determined by two-tailed unpaired t test in D,E, F MCF-7 cells expressing NT or INPP4B #1 shRNA were cultured in growth media or EBSS for the indicated times, then fixed and immunostained with LAMP1 antibodies and co-stained with DAPI and phalloidin (E). Data represent the number of LAMP1+ puncta relative to cell area (µm2) (n=3 experiments, >30 cells per experiment) (F). Data information: Data is presented as mean ± SD. Scale bar is 10 µm in p values determined by one-way ANOVA with Tukey post hoc test in FG, H MCF-7 cells expressing GFP-INPP4B or GFP-vector were transfected with NT, PIK3CA #1 or PIK3CA #2 siRNA. After 24 hours, cells were fixed and immunostained with LAMP1 antibodies, and co-stained with DAPI and phalloidin (G). Data represent the number of LAMP1+ puncta relative to cell area (µm2) (n=3 experiments, >40 cells per experiment) (H). Data information: Data is presented as mean ± SD. Scale bar is 10 µm in G. p values determined by one-way ANOVA in H.
Figure 4A, B Snapshots of LAMP1-GFP, Magic Red cathepsin B substrate and Hoechst 33342 captured in live HeLa cells transfected with INPP4B or NT siRNA (A). Data represent the number of LAMP1+/Magic Red Cathepsin B+ and LAMP1+/Magic Red Cathepsin B− lysosomes (terminal storage lysosomes) per cell (n=3 experiments, >50 cells/experiment) (B).Yellow arrows indicate LAMP1+/MR Cathepsin B+ lysosomes, and white arrows indicate terminal storage lysosomes. Data information: Data is presented as mean ± SD. The insets at the lower right of each image are higher power regions of the boxed areas. Scale bar is 10 µm in A, p values determined by two-way ANOVA with Holm-Sidak post-hoc test in BC Timelapse snapshots of LAMP1-mCherry signals from MCF-7 cells expressing GFP-INPP4B or GFP-vector captured by spinning disk microscopy. Maximum intensity projections of 3 z-planes taken 0.27 µm apart are shown. Arrows indicate lysosome reformation. Data information: The insets at the lower right of each image are higher power regions of the boxed areas. Scale bar is 10 µm in C.E Data represent the number of LAMP1+ reformation events per cell per minute (n=12 GFP-vector cells, n=15 GFP-INPP4B cells). Data information: Data is presented as mean ± SD. p values determined by two-tailed unpaired t test in E.
Figure 5A, B MCF-7 cells expressing GFP-INPP4B or GFP-vector were treated with 5 µM YM201636 for 2 hours. Cells were fixed and immunostained with recombinant GST-2xFYVE and LAMP2 antibodies, and co-stained with DAPI (A). Data represent the proportion of 2xFYVE+ lysosomes (n=3 experiments, >30 cells/experiment) (B). Arrows show co-localization between 2xFYVE and LAMP2. Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in A p values determined by one-way ANOVA in BD-F MCF-7 cells expressing GFP-INPP4B or GFP-vector were treated with 5 µM YM201636 or DMSO as a vehicle control for 2 hours, then YM201636 was washed out for 1, 2 or 4 hours. Cells were fixed and immunostained with LAMP1 antibodies, and co-stained with DAPI and phalloidin (D). Data represent the number of LAMP1+ puncta relative to cell area (µm2) (E), and the lysosome fold change relative to the YM201636-treated condition for each cell line (F) (n=3 experiments, >30 cells per experiment). Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in D. p values determined by one-way ANOVA in E, or by two-tailed unpaired t test of the area under the curve in F.G, H MCF-7 cells expressing GFP-INPP4B or GFP-vector were treated with 1, 2 or 5 µM YM201636 or DMSO as a vehicle control for 4 hours. Cells were lysed and immunoblotted with LC3B antibodies, and GAPDH antibodies as a loading control (G). Data represent the relative LC3B-II levels normalized to GAPDH, and expressed relative to DMSO-treated GFP-vector cells which were assigned an arbitrary value of 1 (n=3 experiments) (H). Data information: Data is presented as mean ± SD. p values determined by one-way ANOVA in H,
Figure 6A, B MCF-7 cells expressing GFP-INPP4B or GFP-vector were transfected with NT, SNX1 or SNX2 siRNA. After 24 hours, cells were fixed and immunostained with LAMP2 antibodies, and co-stained with DAPI and phalloidin (A). Data represent the number of LAMP2+ puncta relative to cell area (µm2) (n=3 experiments, >40 cells per experiment) (B). Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in A, p values determined by one-way ANOVA in with Tukey post hoc test in BC Timelapse snapshots of LAMP1-mCherry and GFP-SNX2 signals from MCF-7 cells captured by spinning disk microscopy. Maximum intensity projections of 2 z-planes taken 0.27 µm apart are shown. Data information: The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in C,D, E MCF-7 cells expressing GFP-INPP4B or GFP-vector were treated with 5 µM YM201636 for 2 hours, then YM201636 was washed out for 1 hour. Cells were fixed and immunostained with SNX2 and LAMP1 antibodies, and co-stained with DAPI (D). Data represent the proportion of SNX2+ LAMP2 puncta (n=3 experiments, >40 cells/experiment) (E). Arrows show co-localization between SNX2 and LAMP2. Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in D, p values determined by one-way ANOVA in with Tukey post hoc test in E,F HeLa cells were transfected with GFP-SNX2. After 24 hours, cells were treated with 5 µM YM201636 for 2 hours, then YM201636 was washed out for 1 hour. Cells were fixed and subjected to immuno-electron microscopy analysis using GFP (10 nm) antibodies. Arrows show GFP-SNX2 localization to lysosome. Data information: Scale bar is 100 nm in F.G HeLa cells were transfected with GFP-PIKfyve. After 24 hours, cells were were treated with 5 µM YM201636 for 2 hours, then YM201636 was washed out for 1 hour. Cells were fixed and immunostained with SNX2, GFP and LAMP2 antibodies, and imaged using super resolution microscopy. Arrows show co-localization between GFP-PIKfyve, SNX2 and LAMP2. Data information: The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm inH MCF-7 cells expressing LAMP1-mCherry were transfected with NT or SNX2 siRNA. After 24 hours, cells were imaged by spinning disk microscopy for 20 minutes. Representative timelapse snapshots of LAMP1-mCherry from a maximum projection of 3 z-planes taken 0.27 µm apart are shown. Arrow indicates lysosome fission. I Data represent the number of LAMP1+ reformation events per cell per minute (n=21 NT siRNA cells, n=27 SNX2 siRNA cells). Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in H, p values determined by two-tailed unpaired t test in I.
Figure 7A, B HeLa cells transfected with INPP4B or NT siRNA were treated for 1 hour with 5 µg/mL puromycin. Cells were fixed and immunostained with ubiquitin antibodies, and co-stained with DAPI and phalloidin (A). Data represent the percentage of cells with ubiquitinated protein aggregates (n=3 experiments, >200 cells/experiment) (B). Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in A p values determined by one-way ANOVA in with Tukey post hoc test in BC, D HeLa cells were treated with 5 µM YM201636 or DMSO as a vehicle control for 2 hours, then 5 µg/mL puromycin for 1 hour. Cells were fixed and immunostained with ubiquitin antibodies, and co-stained with DAPI and phalloidin (C). Data represent the percentage of cells with ubiquitinated protein aggregates (n=3 experiments, >200 cells/experiment) (D). Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in C, p values determined by one-way ANOVA in with Tukey post hoc test in D,E, F MCF-7 cells expressing GFP-INPP4B or GFP-vector were treated for 4 hours with 10 µg/mL puromycin, 5 µm MG132 and either 5 µM YM201636 or DMSO as a vehicle control. Cells were fixed and immunostained with ubiquitin antibodies, and co-stained with DAPI and phalloidin (E). Data represent the percentage of cells with ubiquitinated protein aggregates (n=3 experiments, >200 cells/experiment) (F). Data information: Data is presented as mean ± SD. The insets at the lower right or bottom of each image are higher power regions of the boxed areas. Scale bar is 10 µm in E. p values determined by one-way ANOVA in with Tukey post hoc test inG HeLa cells transfected with INPP4B or NT siRNA were treated with 10 µg/mL puromycin for 2-6 hours, then cell viability was assessed using CellTiter-Glo® assays. Data represent the relative cell viability normalized to untreated NT siRNA cells (n=3 experiments). Data information: p values determined by two-tailed unpaired t test of the area under the curve in GH HeLa cells were treated 10 µg/mL puromycin ± 5 µM YM201636 or DMSO as a vehicle control for 2-6 hours, then cell viability was assessed using CellTiter-Glo® assays. Data represent the relative cell viability normalized to DMSO-treated cells (n=3 experiments). Data information: p values determined by one-way ANOVA with Tukey post hoc test of the area under the curve in H.
Figure 1C. HDo-TRaMs were engineered with vectors relevant to treatment of Fabry, Gaucher, Farber and Pompe diseases. Intracellular lysosomal enzyme specific activities were measured in transduced T-Rapa and controls. Transductions varied across vectors/donors, as indicated. D, E. Enzyme activity was assessed in transduced T-Rapa supernatants compared to controls in activated/dividing (D) and quiescent/resting (E) states.F. Cells from all FDo were stably transduced, as indicated. Intracellular α-galactosidase A (α-gal A) specific activities were determined. G, H. Secreted α-gal A activity was measured from FDo-derived TRaMs in activated (G), and quiescent/resting (H) states. II. α-Gal A specific activity in Fabry patient-derived skin fibroblasts after 6 hours of exposure to conditioned media from TRaMs in the presence or absence of 1mM M6P.
Figure 2B. Engraftment was evaluated by flow cytometry for human CD3 expression.C, D. α-Gal A activity in plasma, and specific activities in liver, spleen, heart and kidneys were measured after transplant of transduced healthy donor (HDo)-derived (C) or Fabry donor (FDo)-derived (D) TRaMs, non-transduced (NT) cells, or in sham-treated NOD/SCID (NS) and NSF mice.
Figure 3A, B. Levels of globotriaosylceramide (Gb3) were measured by LC/MS in plasma and extracts of liver, spleen, heart, and kidneys of mice engrafted with healthy donor (HDo)-derived (A) or Fabry donor (FDo)-derived (B) TRaMs, non-transduced (NT) cells, or in sham-treated NOD/SCID (NS) and NSF mice.C, D. Levels of lyso-Gb3 were measured by LC/MS in plasma and extracts of tissues of mice engrafted with HDo-derived (C) or FDo-derived (D) TRaMs.
Figure 1A, B. Quantification of oryzalin root growth assays in single (A) and double (B) mutants. DAG = days after germination. Graphs show mean ± SD of three biological replicates with at least 10 plants per genotype per replicate. Asterisks indicate a significant difference in root length in a two-way ANOVA followed by Tukey's multiple comparisons test (* P < 0.05, ** P < 0.01, *** P < 0.001 and **** P < 0.0001).E. Silique pictures of cycb1 double mutant combinations. White arrowheads indicate aborted ovules and seeds. Scale bars: 500 μm. F, G. Quantification of aborted seeds in single (F) and double (G) mutants. Graphs represents the average seed abortion rate per plant ± SD of three biological replicates, n = 550-1029 seeds analyzed per genotype. Asterisks indicate significant differences in seed abortion rate in an ordinary one-way ANOVA test, followed by a Dunnett's multiple comparisons test (**** P < 0.0001).
Figure 2C, D. Quantification of endosperm nuclei in cycb1 single (C) and double (D) mutants. Boxes and whiskers represent min to max values with the median indicated as a central horizontal line, n = 26-30 seeds per genotype. Asterisks show significant differences in the number of endosperm nuclei per seed in a Kruskal-Wallis test followed by Dunn's multiple comparisons test (**** P < 0.0001).
Figure 3A. DIC images of abnormal embryo sacs in cycb1 mutant combinations. Red arrowheads indicate the visible nuclei in Col-0 embryo sacs (central and egg cells) and the corresponding structures in the quadruple cycb1;1-/- cycb1;2+/- cycb1;3+/- cyb1;4- mutant. Scale bars: 20 μm. B. Quantification of the different abnormal embryo sac structures in cycb1 mutant combinations (n = 202-459 embryo sacs per genotype). Different letters indicate significant differences in the proportion of abnormal embryo sacs in a Chi-squared test followed by the Marascuilo procedure to identify significant pairwise comparisons. WT = wildtype.C. DIC images of embryo sacs 3 DAP with wildtype pollen (female x male). Red arrowheads indicate the visible embryo sac nuclei in the crosses with the quadruple cycb1;1-/- cycb1;2+/- cycb1;3+/- cyb1;4- mutant as a female donor, while the control Col-0 x Col-0 cross exhibits a developing embryo. Scale bars: 20 μm. D. Quantification of seed abortion in different cycb1 mutant combinations. Graph represents the average seed abortion rate per plant ± SD of three biological replicates, n = 463-579 seeds analyzed per genotype. Asterisks indicate significant differences in seed abortion rate in an ordinary one-way ANOVA test, followed by a Dunnett's multiple comparisons test (**** P < 0.0001).
Figure 4A, B. DAPI staining of pollen in cycb1 mutants, including pollen configurations found in cycb1;1-/- cycb1;2+/- cycb1;3+/- cycb1;4-/- mutants (B). Scale bars: 5 μm. C. Quantification of DAPI-stained pollen configurations in different cycb1 mutant combinations, n = 420-616 pollen grains per genotype. Different letters indicate significant differences in the proportion of abnormal pollen (uni- and bicellular) in a Chi-squared test followed by the Marascuilo procedure to identify significant pairwise comparisons.D. Alexander staining of mature pollen indicating pollen viability. Scale bars: 5 μm. E. Quantification of Alexander-stained pollen viability, n = 403-498 pollen grains per genotype. Different letters indicate significant differences in the proportion of dead pollen in a Chi-squared test followed by the Marascuilo procedure to identify significant pairwise comparisons.
Figure 5A, B, C. Co-immunolocalization against tubulin (magenta) and KNOLLE (green) in root meristematic cells. Nuclei were counterstained with DAPI for the DNA (cyan). White arrowheads indicate laggards in the metaphase stage. Scale bars: 5 μm.D. Quantification of wildtype (WT), double and misplaced PPBs. Different letters indicate significant differences in the proportions of the different arrays per category in a Chi-squared test followed by the Marascuilo procedure to identify significant pairwise comparisons. Ten roots were analyzed per genotype. E. Quantification of PPBs with prominent perinuclear microtubules (MTs). Boxes and whiskers represent min to max values with the median indicated as a central horizontal line, n = 10 roots per genotype. Asterisks show significant differences in the percentage of PPBs with prominent perinuclear microtubules per root in an ANOVA test followed by Dunnett's multiple comparisons test (** P < 0.01 and **** P < 0.0001). F. Quantification of spindles with lagging chromosomes. Boxes and whiskers represent min to max values with the median indicated as a central horizontal line, n = 10 roots per genotype. Asterisks show significant differences in the percentage of spindles with lagging chromosomes per root in a Kruskal-Wallis test followed by Dunn's multiple comparisons test (** P < 0.01 and ns = non-significant).