EGLN1/PHD2 Antibody

Immunocytochemistry/ Immunofluorescence: EGLN1/PHD2 Antibody [NB100-137]

Immunocytochemistry/Immunofluorescence: EGLN1/PHD2 Antibody [NB100-137] - Staining of endogenous PHD2 in U2OS cells. ICC/IF image submitted by a verified customer review.

Knockdown Validated: EGLN1/PHD2 Antibody [NB100-137]

Knockdown Validated: EGLN1/PHD2 Antibody [NB100-137] - Detection of PHD2 in human glioblastoma cell lysates. Image submitted by a verified customer review.

Western Blot: EGLN1/PHD2 Antibody [NB100-137]

Western Blot: EGLN1/PHD2 Antibody [NB100-137] - Detection of human PHD2 by Western blot. Recombinant epitope-tagged PHD1, PHD2 or PHD3 (10 ng/lane) or whole cell lysate from HeLa cells. EGLN1/PHD2 antibody used at 1 ug/mL. Detection by chemiluminescence.

Immunohistochemistry: EGLN1/PHD2 Antibody [NB100-137]

Immunohistochemistry: EGLN1/PHD2 Antibody [NB100-137] - EGLN1/PHD2 and EGFR expression levels positively correlate in breast cancer. Processed tissue microarrays of breast cancer biopsies from 313 patients were stained with EGLN1/PHD2 and EGFR antibodies. Four representative immunohistochemistries of human breast cancer with low and high expression of EGLN1/PHD2 and EGFR are shown. Magnification 10x. Image collected and cropped by CiteAb from the following publication (https://www.oncotarget.com/article/14241/text/) licensed under a CC-BY license.

Western Blot: EGLN1/PHD2 Antibody [NB100-137]

Western Blot: EGLN1/PHD2 Antibody [NB100-137] - Exogenous PHD2 has no impact on the gene expression of HIF-1alpha and HIF-2alpha. U87MG cells were transfected with empty vector (pcDNA) or PHD2 plasmid. Twenty-four hours after transfection, PHD2 was detected by immunoblotting. beta-Actin was used as loading control. The results are representative for three independent experiments. Image collected and cropped by CiteAb from the following publication (https://www.nature.com/articles/cddis2014295), licensed under a CC-BY license.

Flow Cytometry: EGLN1/PHD2 Antibody [NB100-137]

Flow Cytometry: EGLN1/PHD2 Antibody [NB100-137] - An intracellular stain was performed on Jurkat cells with NB100-137AF647 (blue) and a matched isotype control (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 5 ug/mL for 30 minutes at room temperature. Both antibodies were conjugated to Alexa Fluor 647.

Western Blot: EGLN1/PHD2 Antibody [NB100-137]

Western Blot: EGLN1/PHD2 Antibody [NB100-137] - Analysis of PHD2 in normoxia (lane 1) or hypoxia (lane 2) treated SK-N-BE(2) cells using anti-EGLN1/PHD2 antibody. Western blot image submitted by a verified customer review.

Immunocytochemistry/ Immunofluorescence: EGLN1/PHD2 Antibody [NB100-137]

Immunocytochemistry/Immunofluorescence: EGLN1/PHD2 Antibody [NB100-137] - Staining of PHD2 in HeLa cells with DyLight 488 (green). Nuclei and alpha-tubulin were counterstained with DAPI (blue) and DyLight 550 (red).

Immunohistochemistry: EGLN1/PHD2 Antibody [NB100-137]

Immunohistochemistry: EGLN1/PHD2 Antibody [NB100-137] - Staining of lung vascular endothelium with EGLN1/PHD2 antibody. Image at 40X.

Flow Cytometry: EGLN1/PHD2 Antibody [NB100-137]

Flow Cytometry: EGLN1/PHD2 Antibody [NB100-137] - Detection of PHD2 in Jurkat cells. One million Jurkat cells were fixed, permeabilized, and stained with 3.0 ug/mL anti-EGLN1/PHD2 antibody in a 150 uL reaction. Isotype control (black), anti-MLL1 (red).

Immunohistochemistry: EGLN1/PHD2 Antibody [NB100-137] -

PHD2 and EGFR expression levels positively correlate in breast cancerProcessed tissue microarrays of breast cancer biopsies from 313 patients were stained with PHD2 and EGFR antibodies (cf Materials and methods). Four representative immunohistochemistries of human breast cancer with low and high expression of PHD2 and EGFR are shown. Magnification 10x.

Western Blot: EGLN1/PHD2 Antibody [NB100-137] -

Initial characterization of the OS-9 protein.(A) OS-9 expression in various human cell lines. Equal protein amounts of total cell lysates were used for SDS-PAGE & subsequent Western blotting. For each cell line, two independent samples are shown. Endogenous OS-9 was detected with a polyclonal antibody raised against a peptide corresponding to amino acids 600–667 of isoform 1 of OS-9. (B) Protein stability assay of endogenous OS-9. U2OS cells were treated with the translational inhibitor cycloheximide (100 µM). At indicated time points, whole cell lysates were analysed by immunoblotting. (C) Effect of hypoxia on OS-9 expression. For hypoxia, UT-7 cells were exposed to 1% O2 for 24 h prior to Western blot analysis. To determine any influence of HIF-1 alpha on OS-9 expression under normoxia, cells were incubated with the prolyl hydroxylase inhibitor DMOG (0.5 mM) for 24 h. (D) Protein interaction between OS-9 & PHD2 in vitro. For co-immunoprecipitation, U2OS cells were transiently co-transfected with the plasmids pOS-9-V5 & pPHD2-His, lysed in NP40 buffer, & subjected to immunoisolation with anti-V5 antibody recognizing OS-9 by its V5-tag. OS-9 & its associated proteins were separated by SDS-PAGE & analyzed by Western blot (lane 2). As controls, samples of untransfected (lane 1) cells or cells transfected with a single plasmid (lanes 3–4) were loaded. Representative Western blots are shown for each subfigure. Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/21559462), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Western Blot: EGLN1/PHD2 Antibody [NB100-137] -

Cellular localization of OS-9 & PHD2.(A) A lectin gel-shift assay was conducted to test for glycosylated proteins. Total cell lysates of U2OS cells were incubated in the presence or absence of the endoglycosidases EndoH & PNGaseF for 6 h at 37°C. Digest products were separated on a reducing 10% SDS-PAGE gel which contained concanavalin A co-polymerized in the top layer of the separating gel to retard mobility of glycosylated proteins [56]. Glycosylated OS-9 is indicated as ‘g’, deglycosylated OS-9 as ‘d’. (B) Detection of OS-9 & PHD2 in the nuclear fraction. HEK293 cells with & without transfection of the plasmid pcDNA3-OS-9 were separated into nuclear fraction (N) & postnuclear supernatant (PS), the latter containing cytoplasm & organelles. Western blot analysis included BiP, GAPDH & lamin A as typical marker proteins for the ER, the cytoplasm & the nucleus, respectively. (C) Detection of OS-9 & PHD2 in the cytoplasm. HEK293 cells were co-transfected with pcDNA3-OS-9 & pPHD2-V5. For hypoxia, cells were exposed to 3% O2 for 4 h. Cells were treated with 50 µg/ml digitonin & centrifuged to obtain a cytoplasmic (C) & an organelle fraction (O) & subjected to immunoblotting. (D) Isolation of cellular endomembranes. HEK293 cells were lysed mechanically by several passages through a 30½G needle. The postnuclear supernatant was processed further by ultra-centrifugation to separate the organelles (O) from the cytosol (C). High salt treatment (1 M KCl) of the organelle fraction produced a wash fraction (W) that contained dissociated peripheral membrane proteins. For immunoblot analysis of subcellular fractionations, cell aliquots were normalized for cell number prior to loading (B–D). Representative Western blots are shown for each subfigure. Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/21559462), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Western Blot: EGLN1/PHD2 Antibody [NB100-137] -

Western Blot: EGLN1/PHD2 Antibody [NB100-137] - Representative picture of western blot in histopathologically unchanged tissue (N) & primary cancerous tissue (C) from patients with CRC. Immunodetection of bands was performed with Rp anti- PHD1, - PHD2, - PHD3 & - FIH Ab, followed by incubation with goat anti-rabbit HRP-conjugated Ab. The membrane was stripped & incubated with Rp anti-GAPDH Ab, followed by incubation with goat anti-rabbit HRP-conjugated Ab. Bands were revealed using SuperSignal West Femto Chemiluminescent Substrate, Thermo Fisher Scientific (Rockford, IL) & Biospectrum® Imaging System 500, UVP Ltd. (Upland, CA). Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/24195777), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Western Blot: EGLN1/PHD2 Antibody [NB100-137] -

Western Blot: EGLN1/PHD2 Antibody [NB100-137] - OS-9 shows no effect on regulation of HIF-1 alpha.Total cell lysates were used for SDS-PAGE & subsequent Western blotting. To generate nearly anoxic conditions, cells were exposed to an oxygen consuming chemical system or to 1% or 3% O2 for 4 h to generate hypoxia. (A) U2OS, HeLa & Hep3B cells were transiently transfected with the plasmid pOS-9-V5 48 h prior to the experiment. Lamin A & actin were used as loading controls. (B) U2OS cells were subjected to ER stress by incubation either with tunicamycin (1 µg/ml) or thapsigargin (0.5 µg/ml) for 20 h. To detect HIF-1 alpha under normoxia, cells were treated with DMOG (1 mM) for 4 h. A sample of DMSO-only treated cells was loaded to exclude unspecific side effects of the solvent. (C) U2OS cells were transduced with lentiviral construct pLKO.1-shRNA-OS-9 (shOS-9) mediating a stable knockdown of OS-9 expression. Control cells (c) were transduced with plasmid pLKO.1-puro. Representative Western blots are shown for each subfigure. Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/21559462), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Western Blot: EGLN1/PHD2 Antibody [NB100-137] -

Western Blot: EGLN1/PHD2 Antibody [NB100-137] - Oxygen chemotaxis is independent of the PHD/HIF pathway. a–dHIF1A, HIF2A, HIF1A+HIF2A & PHD2 CRISPR/Cas9 KO clones characterisation, respectively, regarding O2-directed migration. Left panels: immunoblot validation of HIF1A, HIF2A, HIF1A+HIF2A & PHD2 KO clones. To blot HIFs factors (a, b, c), cells were first pre-treated for 5 h with CoCl2 300 µM before protein extraction, a condition that promotes HIF factors accumulation (cf. Supplementary Fig. 8f). Middle panels: cell trajectories under confinement. Red dashed lines indicate the border of the cell cluster at 0 h. Right panels: relative distribution of MCF10A KO clones versus wt cells at the edge of the cluster at 48 h. These experiments demonstrate that HIF factors deletion does not prevent aerotaxis. e, f Tracks & redistribution of wt & PHD2 KO clone silenced for PHD3 (siPHD3) or not (siCTR). g Tracks & redistribution of MCF10A cells treated with DMOG (50 µM) or CoCl2 (50 µM) to inhibit PHDs, or with vehicle only (DMSO). These experiments demonstrate that PHDs do not participate in O2-sensing during aerotaxis. Confinement was applied for 48 h (a–g). Scale bars, 500 µm Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/30382089), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Western Blot: EGLN1/PHD2 Antibody [NB100-137] -

Western Blot: EGLN1/PHD2 Antibody [NB100-137] - PHD3 expression correlates with a mesenchymal-like morphology in pancreatic ductal adenocarcinoma cell lines.NHF-1 (Fibroblast) MiaPaca2, Panc1, CAPAN1 & BxPC3 cells were harvested for RNA & protein following 24 hours exposure to normoxia (21% O2) or hypoxia (1% O2). (A) Phase-contrast images at 10× magnification were taken of MiaPaca2 (mesenchymal-like) morphology & BxPC3 cells (differentiated, epithelial morphology) under normoxic conditions. (B) PHD3 mRNA expression was determined by qRT-PCR & graphed relative to BxPC3 in normoxia. All samples were normalized to 18S rRNA & graphed as expression relative to BxPC3-Vec Normoxia (lane 1). n = 3, error bars  = 1 S.D. (C) Whole cell lysate was resolved by SDS-PAGE & blotted for beta-tubulin PHD3 & PHD2. N = normoxia, H = hypoxia (1% O2). Image collected & cropped by CiteAb from the following publication (https://dx.plos.org/10.1371/journal.pone.0083021), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Western Blot: EGLN1/PHD2 Antibody [NB100-137] -

Western Blot: EGLN1/PHD2 Antibody [NB100-137] - Iron supplementation restores HIF-1 alpha levels to normal following ATP6V0E1 inhibition in HeLa cells. (A) Schematic diagram of the multimeric V-ATPase complex. (B) Chemical inhibition of V-ATPase by 10 nM BafA treatment for 24 h, increased HIF-1 alpha levels in HIF alpha-GFPODD reporter cells. Treatment with 100 μM Fe (III) citrate significantly reduced the elevated HIF-1 alpha levels associated with loss of ATP6V0E1 (1 × 106 cells per sample harvested & analyzed; N = 2). (C) Knock-down of ATP6V0E1 subunit with three different CRISPR-Cas9 guides resulted in significant upregulation of HIF-1 alpha levels in HIF alpha-GFPODD reporter cells. Co-treating cells with 100 μM Fe (III) citrate led to a reduction in HIF-1 alpha levels across the three ATP6V0E1 depleted cells. phd2 was knocked down as a control & treatment with 100 μM Fe (III) citrate did not result in reduction of HIF-1 alpha levels (1 × 106 cells per sample harvested & analyzed; N = 2). FACs plot shown is a representative image of two biological repeats performed. (D) Immunoblot analysis for HIF-1 alpha & PHD2 levels in HIF alpha-GFPODD reporter cells with either ATP6V0E1 or PHD2 depleted or treated with 10 nM BafA. The cells were treated with 100 μM Fe (III) citrate for 24 h. beta actin was used as a control. Results validated findings observed by flow cytometry, whereby HIF-1 alpha levels were upregulated following ATP6V0E1 knock-down or inhibition & levels were re-normalized upon Fe (III) citrate treatment. Treatment of Fe (III) citrate in PHD2 depleted cells did not alter HIF-1 alpha levels. All experiments were performed in biological duplicate. Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/32984302), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Western Blot: EGLN1/PHD2 Antibody [NB100-137] -

Western Blot: EGLN1/PHD2 Antibody [NB100-137] - PHD3 depletion stabilizes hypoxic p27 expression by increasing p27 half-life. a Cell cycle arrest at G0 & subsequent release shows an increase of p27 expression in siPHD3 exposed cells. b Quantification for p27 expression under PHD3 depletion at indicated time points after cell cycle release in HeLa & 786-O cells. Asterisk indicates significant difference (p < 0,05; n = 3). c Cell cycle arrest at G0 & inhibition of protein synthesis with cycloheximide indicate increased p27 stability in PHD3 depleted HeLa cells. d Quantification of p27 expression using siPHD3 or control at indicated time points. Four independent experiments (± SEM) are shown (p < 0,05; n = 4). e Analysis of p27 stability in 786–0 cells by cycloheximide chase during reoxygenation after 24 h hypoxia demonstrates markedly increased half-life of p27 upon PHD3 depletion Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/26223520), licensed under a CC-BY license. Not internally tested by Novus Biologicals.