EMBO/sd-character-level-ner huggingface dataset:
Figure 7(A) Co-immunoprecipitation between hAPP and p75NTR in hippocampal extracts from 6 month 5xFAD and p75NTR mutant mice as indicated. Results shown are representative from 3 independent experiments. Molecular weights are indicated in kDa. IP: immunoprecipitation; IB: immunoblotting; WCL, whole cell lysate. (B) Proximity ligation assay (PLA) between triple mutant hAPP and p75NTR in hippocampal neurons from wild type and C259A mice (first and second rows, respectively). The third row (no APP) shows control PLA reaction in neurons that did not receive hAPP lentivirus. The fourth row (KO) shows control PLA reaction in neurons from p75NTR knock-out mice infected with hAPP lentivirus. Counterstaining for MAP2 is also shown. Scale bar, 10μm. (C) Quantification of total PLA signals in wild type and p75NTR mutant neurons in the presence or absence of hAPP lentivirus, as indicated. Values were normalized to levels in wild type neurons and are expressed as mean PLA puncta per cell ± SEM from at least 25 neurons in 3 independent experiments. (D) Quantification of cell surface PLA signals in wild type and p75NTR mutant neurons in the presence or absence of triple mutanthAPP lentivirus, as indicated. Live neuron cultures were fed with anti-mouse p75NTR and anti-hAPP antibodies on ice, washed after staining, fixed, and developed with PLA reaction. Values were normalized to levels in wild type neurons and are expressed as mean PLA puncta per cell ± SEM from at least 25 neurons in 3 independent experiments. (E) Internalization of hAPP/p75NTR PLA signals in hippocampal neurons of wild type and p75NTR mutant mice. Live neuron cultures were fed with anti-mouse p75NTR and anti-hAPP antibodies on ice, washed and plates placed at 37°C for different periods of time to allow internalization. Internalization was stopped by acid wash, followed by fixation and PLA reaction. Counterstaining for MAP2 and DAPI are also shown. Scale bar, 10μm. (F) Kinetics of co-internalization of hAPP and p75NTR in hippocampal neurons from wild type, ΔDD and C259A mice. Show are mean ± SEM of percentage internalization of total surface PLA signal (set to 100%). (G) Linear transformation of p75NTR internalization kinetics
Proposed model for how CIP2A controls cell metabolism and proliferation and vice versa.Figure 7.Proposed model for how CIP2A controls cell metabolism and proliferation and vice versa. The molecules and processes regulated positively and negatively by CIP2A are marked pink and light green, respectively.
Figure 7Western blot analysis of MsrB2 and Cytochrome C in isolated mitochondria after incubation w/o Cyclosporin A (CsA; 2 μM for 2 hrs.) or w/ CsA. ATPB served as the loading and negative control (mitochondrial matrix protein). Western blot analysis of Parkin, LC3I/II, ubiquitinated MsrB2 in chow (n=4) and HFD (n=6) mouse platelets.Confocal microscopy was initially stained with Tubulin antibody (Panel a., Chow diet, or b. High Fat Diet) to assess platelet architecture. This was followed by staining using ATPB (mitochondria marker - green) and MsrB2 antibodies (Blue) (Panel c-e). There was loss of colocalization in the HFD mice supporting release (blue) from ruptured mitochondria (green) (Panel d & e). The nonparametric t test was performed for comparisons of 2 groups. Analysis was performed with Prism software (GraphPad Software, Inc, La Jolla, CA). A difference of P<0.05 was considered significant.
Figure 5A. 293T cells were transiently co-transfected with empty vector and NDUFB5-MYC, or OMA1-E324Q-Flag and NDUFB5-MYC. Cell lysates were used for co-immunoprecipitation with anti-Flag M2 affinity gel at 4°C overnight, followed by Western blotting with anti-Flag or anti-MYC antibodies (n = 3 independent experiments). B. 293T cells were transiently co-transfected with empty vector and NDUFB6-GFP, or OMA1-E324Q-Flag and NDUFB6-GFP. Cell lysates were used for co-immunoprecipitation with anti-Flag M2 affinity gel at 4°C overnight, followed by Western blotting with antibodies against Flag or GFP (n = 3 independent experiments). C. 293T cells were transiently co-transfected with empty vector and COX4L1-GFP, or OMA1-E324Q-Flag and COX4L1-GFP. Cell lysates were used for coimmunoprecipitation with anti-Flag M2 affinity gel at 4°C overnight, followed by Western blotting with anti-Flag or anti-GFP antibodies (n = 3 independent experiments). D. 293T cells were transiently co-transfected with empty vector and NDUFA4-GFP, or OMA1-E324Q-Flag and NDUFA4-GFP. Cell lysates were used for coimmunoprecipitation with anti-Flag M2 affinity gel at 4°C overnight, followed by Western blotting with antibodies against Flag or GFP (n = 3 independent experiments). E. HCT116 cells stably expressing control (empty vector) or OMA1-Flag, and HCT116 cells infected with control or shOMA1 (OMA1 knockdown) lentiviral particles and further cultured for 5 days, were then treated with DMSO or 20 μm CCCP for 4 hours. Cell lysates were analyzed by Western blotting with antibodies against NDUFA4, COX4L1, NDUFB5, DNUFB6, MT-CO2, OMA1 or Tubulin. The black arrowhead indicated the full-length COX4L1 or NDUFB6, and the red arrowhead pointed to the cleaved band. The asterisk indicates a nonspecific band. F. WT, OMA1 KO and OMA1 KO HCT116 cells expressing WT-OMA1(OMA1-Flag) or proteolytic inactive OMA1(E324Q-Flag) were treated with CHX (100 µg/ml) plus CCCP (20 µM) for 0, 2, 4, 6 hours. The cell lysates were then assessed by western blot with antibodies against NDUFA4, COX4L1, NDUFB5, NDUFB6, OMA1 or HSPD1 (representative data from three independent experiments). The asterisk indicates a nonspecific band. G. Control or OMA1 KO HCT116 cells were cultured in hypoxia (1% O2) for 0, 24, or 48 hours. Cell lysates were assessed by Western blotting with anti-NDUFB5, anti-NDUFB6, anti-COX4L1, anti-NDUFA4 antibodies, or anti-β-Actin. The relative protein levels were further evaluated by densitometry analysis using ImageJ software and were presented as bar graphs in the right panels. Error bars are presented as mean ± SD by a two-way ANOVA (n = 3 independent experiments). *p<0.05, **p < 0.01, ***p < 0.001.
Figure 8(A) Heat map of metabolism-associated DEGs (p (adj.) < 0.10) in npTh17 cells of WT and Stim1fl/flCd4Cre mice determined by RNA-Seq as described in Figure 7. Heatmap shows relative minimum and maximum values per gene (row min/max). Numerical values are relative gene expression. TCA, tricarboxylic acid. Glucose and mitochondrial metabolism in npTh17 cells from WT (grey or black) and Stim1fl/flCd4Cre (blue)mice differentiated for 3 days in vitro. (B) Glucose uptake by npTh17 cells were loaded with 2-NBDG (+) or not (-) and analyzed by flow cytometry 90 min later. Bar graphs show the delta MFI of 2-NBDG fluorescence normalized to unlabeled cells. Data represent the mean ± SEM from 3 independent experiments. (C) Extracellular acidification rate (ECAR) of npTh17 cells before and after addition of 25 mM glucose, 5 μM oligomycin and 100 mM 2-deoxy-D-glucose (2-DG). Seahorse graphs and bar graphs depicting glycolysis, glycolytic capacity and reserve the mean ± SEM from of 2-3 mice per genotype from one representative out of three independent experiments. Glucose and mitochondrial metabolism in npTh17 cells from WT (grey or black) and Stim1fl/flCd4Cre (blue)mice differentiated for 3 days in vitro. (D) Oxygen consumption rate (OCR) of npTh17 cells before and after addition of 1 μM oligomycin, 1.5 μM FCCP and 100 nM rotenone / 1 μM antimycin. Seahorse graphs and bar graphs depicting basal and maximal respiration, coupling efficiency and ATP production represent the mean ± SEM from of 2-3 mice per genotype from one representative out of three independent experiments. Glucose and mitochondrial metabolism in human CD4+ T cells isolated from PBMC of a HD and P1 and stimulated with 5 μg/ml anti-CD3 and 10 μg/ml anti-CD28 for 24 hours before analysis. Some HD T cells were stimulated in the presence of 1μM FK506. (E,F) ECAR before and after addition of 25 mM glucose, 5 μM oligomycin and 100 mM 2-DG. Glucose and mitochondrial metabolism in human CD4+ T cells isolated from PBMC of a HD and P1 and stimulated with 5 μg/ml anti-CD3 and 10 μg/ml anti-CD28 for 24 hours before analysis. Some HD T cells were stimulated in the presence of 1μM FK506. (G,H) OCR before and after addition of 1 μM oligomycin, 1.5 μM FCCP and 100 nM rotenone / 1 μM antimycin. Seahorse graphs (G) and bar graphs (H) depicting basal and maximal respiration, SRC and ATP production (right) represent the mean ± SEM of 2 technical replicates from isolated T cells from one experiment.
Figure 3A-C. The cross-presentation ability after incubation with A) soluble OVA, B) OVA/BSA-coated beads and C) the SIINFEKL control peptide at the indicated concentrations by Scramble and Rab22a KD JAWS-II DCs was evaluated with the B3Z hybridoma. Data represent mean ± SEM of triplicate values and are representative of three independent experiments. A) ***P = 0.0001 and B) P = 0.1432 (ns); **P = 0.0044. The two-tailed Student's unpaired t test was performed. D-E. Evaluation of endocytosis and phagocytosis in Scramble and Rab22a KD JAWS-II DCs. D) The endocytosis of fluorescent OVA after 1 h of internalization and E) the phagocytosis of 3 µm fluorescent LB at different times of internalization were assessed by FACS analysis. The antigen internalization was conducted at 37°C for effective uptake and at 4°C as negative control. Data represent mean ± SEM of triplicate values and are representative of three independent experiments. F. The kinetics of OVA degradation, as percentage of proteases inhibitors, in isolated phagosomes at the indicated time periods post-internalization from Scramble and Rab22a KD JAWS-II DCs was assessed by FACS analysis. Data represent mean ± SEM of three independent experiments. G. Immunoblotting of Rab22a and Actin in BMDCs infected with lentiviruses encoding a random sequence (Scramble) and two shRNA specific for silencing Rab22a (Rab22a KD #1 and #2). H-I. The cross-presentation capacity after the incubation with H) soluble OVA at the indicated concentrations by Scramble, Rab22a KD #1 and Rab22a KD #2 BMDCs was evaluated as described before for JAWS-II DCs. Data represent mean ± SEM of triplicate values and are representative of two independent experiments. ***P = 0.0001. The two-tailed Student's unpaired t test was performed. H-I. The cross-presentation capacity after the incubation with I) the SIINFEKL control peptide at the indicated concentrations by Scramble, Rab22a KD #1 and Rab22a KD #2 BMDCs was evaluated as described before for JAWS-II DCs. Data represent mean ± SEM of triplicate values and are representative of two independent experiments. ***P = 0.0001. The two-tailed Student's unpaired t test was performed. J. Soluble OVA was electroporated into the cytosol of Scramble and Rab22a KD JAWS-II DCs and T cell activation was determined 2 h later with the B3Z hibridoma. To control endogenous MHC-I antigen presentation specificity, DCs were also treated with brefreldin A (BFA). The use of this drug markedly reduced CD8+ T cell response to similar levels obtained by DCs without any antigen (∅). Data represent mean ± SEM of triplicate values and are representative of three independent experiments. K. Immunoblotting showing the amount of OVA incorporated by Scramble (a) and Rab22a KD (b) JAWS-II DCs after electroporation and BFA treatment.
Involvement of Drosophila Autophagy‐specific gene 1 in Drosophila Target of rapamycin‐dependent cell growth and development.Figure 1(A) Genomic structure of CG10967. The P‐element insertion site of EP3348 (DmATG11) is denoted. (B) The transcriptional levels of DmATG1 in the third instar larvae were analysed by qRT-PCR. Ribosomal protein 49 (rp49) was used as an internal control; n=3. Bars indicate mean±s.d. (C) Images of the larvae of denoted genotypes at 3 days (top) and 6 days (middle) after egg‐laying (AEL), and quantification of the larvae that developed into the mid-late third instar stage of each genotype (bottom); n=3. Bars indicate mean±s.d. Fifteen larvae of each genotype were examined in each experiment. (D) Suppression of lipid vesicle aggregation in the fat body of dTOR mutants by reduced gene dosage of DmATG1. The fat body images of the second/early third instar larvae of denoted genotypes under fully fed conditions. (E) Images of the larval salivary glands of denoted genotypes. Hoechst33342 (pseudo-coloured green) and phalloidin-TRITC (red) were used to visualize the nuclei and cell boundary of larval salivary gland cells, respectively. (F) Quantitative analysis of cell and nuclear sizes in Fig 1E; n=5. Bars indicate mean±s.d. DmATG1, Drosophila Autophagy‐specific gene 1; dTOR, Drosophila TOR; qRT-PCR, quantitative real‐time reverse transcriptase-PCR.
Conformational change in HsAtg4B upon complex formation with LC3.Figure 4(A) Surface model of free (left) and LC3(1-124)‐bound (right) HsAtg4B. W142 and the regulatory loop are coloured blue, and the N‐terminal tail is coloured cyan. The catalytic Cys74 is coloured red. LC3(1-124) is shown as a ribbon model. (B) In vitro proteolysis assay using N‐terminal tail‐deleted HsAtg4B. LC3-GST was incubated with either wild‐type or N‐terminally truncated HsAtg4B and was subjected to SDS–PAGE analysis. (C) Structural comparison between free and LC3(1-124)‐bound HsAtg4B and SENP2-SUMO‐3 precursor complexes. Left, free HsAtg4B; middle, the HsAtg4B-LC3 precursor complex; right, the SENP2-SUMO‐3 precursor complex. The three structures are shown in the same orientation. Model colouring is the same as in Figure 3. (D) urface model of LC3(1-120) bound to HsAtg4B. Atom colouring is the same as in (A).
Figure 7A, B. GTP hydrolysis activities of Mfn1, Mfn2, Mfn2K109A and OPA1 in the presence or absence of recombinant GST-hFis1 or GST (negative control) were determined by measuring the concentration of free phosphate (Pi) released from GTP. Myc-tagged Mfn1, Mfn2, Mfn2K109A and OPA1 were transiently expressed separately in 293T cells and immunopurified by anti-Myc agarose beads. GTPase activities of immunopurified Myc-tagged Mfn1, Mfn2, Mfn2K109A and OPA1 were determined after treatment with or without recombinant GST-hFis1 or GST protein (A). The input levels of immunopurified Mfn1-Myc, Mfn2-Myc and OPA1-Myc (left panel) as well as recombinant GST-hFis1 (~42 kDa) and GST (~26 kDa) (right panel) were assessed by immunoblotting with indicated antibodies (B). C, D. GTP hydrolysis activities of Drp1 in the presence or absence of recombinant GST-hFis1 or GST (negative control) were determined as described in (A). Untagged WT Drp1 and Drp1Q34A were transiently expressed in Drp1-/- 293T cells and immunopurified by protein G beads pre-incubated with Drp1 antibody. GTPase activities of immunopurified Drp1 and Drp1Q34A were determined after treatment with or without recombinant hFis1 or GST protein (C). The input levels of immunopurified Drp1 and Drp1Q34A were assessed by immunoblotting with anti-Drp1 antibody (D). E, F. GTP hydrolysis activities of Dyn2 in the presence or absence of recombinant GST-hFis1 or GST (negative control) were determined as described in (A). Endogenous Dyn2 in Drp1-/- 293T cells was immunopurified by protein G beads pre-incubated with anti-Dyn2 antibody. GTPase activity of immunopurified Dyn2 was determined after treatment with or without recombinant GST-hFis1 or GST protein (E). The input levels of immunopurified Dyn2 were assessed by immunoblotting with anti-Dyn2 antibody (F). G. Summary of the effects of pro-fusion GTPases (Mfns and OPA1) on hFis1-induced mitochondrial fragmentation in Drp1-/- cells. Percentages (mean ± s.e.m.) of cells with indicated mitochondrial morphologies in Drp1-/- 293T cells co-expressing Myc-hFis1 and either empty vector, Mfn1-Myc, Mfn2-Myc or OPA1-Myc in three independent experiments. n represents the number of cells analyzed. Corresponding confocal images shown in Fig EV4.
a) ELISA of serum IL-1β and IL-18 at 24 h after intraperitoneal injection of LPS (12 mg per kg body weight) into male Map1lc3b+/+ and Map1lc3b−/− mice.figf7(a) ELISA of serum IL-1β and IL-18 at 24 h after intraperitoneal injection of LPS (12 mg per kg body weight) into male Map1lc3b+/+ and Map1lc3b−/− mice. (b) Survival of Map1lc3b+/+ mice (n = 11) and Map1lc3b−/− mice (n = 10) after LPS challenge (100 mg per kg body weight), assessed over a period of 2 weeks. (c,d) ELISA of serum IL-1β and IL-18 in male Map1lc3b+/+ and Map1lc3b−/− mice (c) and Becn1+/+ and Becn1+/− mice (d) at 24 h after CLP or sham laparotomy. In a,c,d, each symbol represents an individual mouse; small horizontal lines indicate the mean. P values, unpaired two-tailed Student's t-test (a,c,d) or log-rank test (b). Data are representative of two experiments.
Figure 5(A) Pml+/+ and Pml-/- BMDMs were treated with TNF (100 ng/ml) + zVAD (20 μM) for the indicated timeframes. The contents of p-IKKα/β, IKKα/β, IκBα, p-MK2 and MK2 was analysed by immunoblotting. (B) Pml+/+and Pml-/- BMDMs were treated with TNF (100 ng/ml) + zVAD (20 μM) for the indicated times, and levels of p-RIPK1[S321], RIPK1, p-JNK, JNK, p-ERK, ERK, p-p38, and p38 at the indicated time points were then determined. (C, D, E, F) WT (Pml+/+) and Pml-/- mice were treated with DMSO or Nec-1s (6 μg/g) or MK2 inhibitor PF-3644022 (75 μg/mouse) by intraperitoneal injection 15 min before and 60 min after intravenous TNF (1.5 μg/g body weight) injection. Body temperature (C, E) and survival (D, F) were monitored. Experiments C-F were conducted concurrently. Mean ± S.E.M is shown (C, E).
Fig.Figure 4A. Relative root growth of wild-type (Col-0) (grey lines) and 35S::ARR1∆DDK-GR (purple lines) seedlings grown on mock (DMSO; continuous line) or with dexamethasone (DEX 10 µM; dashed line) supplemented medium. Five days old seedlings (Day 0) were monitored for 3 days. Mean ± s.d.; ** P < 0.01, **** P < 0.0001 by Student's t-test, referred to wild-type - mock. n = 12-14 roots. B. Immunostaining of α-tubulin in epidermal cells of the transition (TZ) and the elongation (EZ) zone of 35S::ARR1∆DDK-GR roots after non-, 3h or 16h of treatment with dexamethasone (DEX 10 µM). Scale bar 10 µm. C. Histograms present the CMT orientation distributions (%) in epidermal cells of the TZ and the EZ treated as indicated in (B). Mean ± s.d., (* P < 0.05, ** P < 0.01, and **** P < 0.0001 by Student's t-test, referred to same root zone without DEX induction). n = 16-24 cells per growth zone in 8-9 roots per condition were analyzed. D, E. Analysis of root sensitivity to oryzalin in wild-type (Col-0) and 35S::ARR1∆DDK-GR. Seedlings were grown for 5 days on mock (Murashige and Skoog) medium and then transferred to medium supplemented with 1 µM oryzalin, CK with oryzalin (10 µM BAP and 1 µM oryzalin), with or without DEX 10 µM, for 3 days. For the double CK and oryzalin treatment, seedlings were pretreated with 10 µM BAP for 60 min prior to transfer to medium supplemented with both compounds. Representative images; white arrowheads indicate root length at day of transfer. Scale bar 1 mm (D). Quantifications calculated as percentage (%) of root tips exhibiting swelling (dark grey bars), and weak and strong resistance to oryzalin (grey and white bars, respectively). On the right representative images of root phenotype categories. n=10-25 roots per treatment were evaluated. (E). F. Relative root growth of wild-type (Col-0) (grey lines) and 35S::ARR1∆DDK-GR (purple lines) seedlings grown on oryzalin 1µM (continuous line) or on oryzalin 1µM and DEX 10 µM (dashed line) supplemented media monitored for 3 days. Day 0, day of transfer. Mean ± s.d.; n = 12-14 roots.
LNS2SS2- interface.Figure 2View of the Nxph1-LNS2SS2- interface showing key LNS2 residues as sticks. The yellow surface represents the Nxph1 molecule. Sequence alignment of mouse Nrxn1-3 LNS2SS2- showing key regions involved in Nxph1 binding. Sequences are numbered in reference to the canonical UniProt mouse Nrxn1 sequence Q9CS84-1. Secondary structure elements of LNS2SS2- are shown at the top and correspond to elements shown in A. Electron density map showing the LNS2SS2- I401 residue (highlighted in red in B) interacting with a hydrophobic binding pocket formed primarily by Y249 and L251 of Nxph1. Representative BLI traces showing decreased binding of Nxph1 to the Nrxn1 LNS2SS2- (I401Q) mutant compared to that of wild-type Nrxn1 LNS2SS2-. Replicate numbers are shown in E. Comparison of binding affinities for Nxph1 binding to mouse Nrxn1-3 LNS2SS2- and LNS2SS2- (I401Q), plotted on a logarithmic scale. Error bars represent SEM and replicate numbers are indicated in bars. Significance values were calculated using Welch's t-test, *P < 0.05, **P < 0.01.
Figure 2A Diagram of the virally-mediated approach to induce Gadd45a-overexpression in hippocampal glutamatergic neurons of Nex-Cre(+/-) mice. Gadd45a mRNA level in the hippocampus of Gadd45a-overexpressing mice (red, n=7) was significantly increased (t10=4.189) as compared to Gadd45a-WT (n=5). Values shown are mean ± SEM; unpaired t-test: ** = p<0.01. C Immunohistochemistry for hemagglutinin (HA, fused to Gadd45α) in Gadd45a-WT (Nex-Cre(-/-), n=5) and Gadd45a-overexpressing hippocampi (Nex-Cre(+/-), n=5) 8 weeks after AAV injection. Note that the Gadd45α-HA signal in Gadd45a-overexpressing mice is predominantly found in the stratum pyramidale (sp) but also in the stratum oriens and stratum radiatum (so and sr, respectively). Scale bar: 250 µm. D Cellular distribution of Gadd45α was analyzed by HA-western blot on nuclear and cytoplasmic protein fractions of Gadd45a-WT and Gadd45a-overexpressing mice (n=2 for both groups). HA was found predominantly in the nuclear fraction of Gadd45a-overexpressing hippocampi, with a smaller but recognizable expression also in the cytoplasm. E Latency to enter the dark compartment for Gadd45a-WT (white bars, n=10) and Gadd45a-overexpressing mice (red bars, n=12) in the PA test. A significant increase was found 24 hours and 7 days after the PA training in the Gadd45a-overexpresion group. Values shown are mean ± SEM; 2-Way ANOVA and Bonferroni Post-hoc test: * = p<0.05.
Figure 4Fluorescent in situ hybridization for Ythdf1 mRNA in Ythdf1CTL and Ythdf1cKO small intestines. Scale bar, 50 μm. Immunoblot analysis of fractionated murine intestine enriched for villus cells and crypt cells. Flowcytometry analysis of YTHDF1 protein expression in GFPhigh/low/neg populations from Lgr5-GFP-IRES-creERT2 mice. Morphology of organoids from Lgr5-creERT2:Ythdf1fl/fl mice in Wnt3a-conditioned medium without or with 4-OHT induction and infected with lentivirus expressing YTHDF1 or YTHDF1 mutant. Scale bar, 250 μm. Quantification of differentiated versus undifferentiated organoids from (D). Data are represented as mean ± SEM. **p<0. 01 (4 biological replicates, t-test). Relative mRNA levels of intestinal stem cell and differentiation marker genes in organoids described in (D). Data are represented as mean ± SEM. 4 biological replicates. *p<0. 05, **p<0. 01, ***p<0. 001 (t-test).
Figure 5Freezing phenotype (A) of Col-0, atann1, and atann1 AtANN1S289E (#5) plants. 12-d-old plants grown on MS medium at 22°C were exposed to freezing temperatures (NA, −5°C, 30 min; CA, −8°C, 40 min). Representative pictures are shown in (A). survival rate (B), and ion leakage (C) of Col-0, atann1, and atann1 AtANN1S289E (#5) plants. 12-d-old plants grown on MS medium at 22°C were exposed to freezing temperatures (NA, −5°C, 30 min; CA, −8°C, 40 min). Freezing phenotype (D) of Col-0, Atann1, and atann1 AtANN1S289A (#16) plants. 12-d-old plants grown on MS medium at 22°C were exposed to freezing temperatures (NA, −5°C, 30 min; CA, −8°C, 40 min). Representative pictures are shown in (D). survival rate (E), and ion leakage (F) of Col-0, Atann1, and atann1 AtANN1S289A (#16) plants. 12-d-old plants grown on MS medium at 22°C were exposed to freezing temperatures (NA, −5°C, 30 min; CA, −8°C, 40 min).