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212 protocols using t5168

1

Immunostaining of Cellular Components

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Cells were grown on glass coverslips, washed with phosphate-buffered saline (PBS), fixed with 1 or 4% paraformaldehyde (in PBS) for 10 min, and permeabilized with 0.2% Triton X-100 in PBS for 5 min. After blocking with 2% bovine serum albumin (BSA) in PBS for at least 1 h, cells were incubated with primary antibodies, diluted in 2% BSA in PBS for 1 h at room temperature (RT) or overnight at 4°C, washed three times with PBS, and incubated with secondary antibodies in 2% BSA in PBS for 1 h at RT. After immunostaining, cells were washed with PBS and mounted on microscopic slides with VectaShield (VectorLabs) for microscopic analysis. The following primary antibodies were used in this study: anti-calnexin (Abcam, ab22595), anti-calreticulin (ThermoScientific, PA3-900), CREST (ImmunoVision, HCT0100), anti–Ki-67 (Abcam, ab16667), anti-KIF4 (Abcam, ab3815), anti-KIF22 (Abcam, ab222187), anti-LBR (abcam, ab32535), mAb414 (Abcam, ab24609), anti-MAD2 (Bethyl Laboratories, A300-301A), anti-topoisomeraseII (Abcam, ab109524), anti–α-tubulin (Sigma, T5168), and anti–γ-H2AX (Millipore, 05-636-l). The antibody against human SUN1 has been previously described (Sosa et al., 2013 (link)). For secondary antibodies, Alexa Fluor–conjugated antibodies (goat, 1:300; Life Technologies) were used.
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2

Comprehensive Immunodetection Protocol for Neurodegenerative Markers

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For western blot analysis rabbit anti-rab10 (Cell Signaling, 8127S, 1:1000), rabbit anti-phospho-rab10 (Abcam, ab230261, 1:1000), rabbit anti-rab8 (Cell signaling, 6971S, 1:1000), mouse anti-β-3-tubulin (Cell signaling, 4466S, 1:4000), rabbit anti-TH (Millipore, 657012, 1:4000), rabbit anti pS129 aSyn (Abcam, ab51253, 1:1000), mouse anti alpha synuclein (BD Biosciences, 610787, 1:2000), rabbit anti-LRRK2 (Abcam, ab133474, 1:500), rabbit anti-phospho S935 LRRK2 (Abcam, ab133450, 1:500). rabbit anti-alpha synuclein (Santacruz, SC7011-R, 1:2000), rabbit anti-Glucocerebrosidase (Sigma, G4171), mouse anti-alpha tubulin (Sigma, T5168, 1:40,000), mouse anti-GAPDH (Millipore, MAB374, 1:5000). The secondary antibodies used in western blot analysis goat anti-mouse and goat anti-rabbit (Jackson ImmunoResearch lab, #115–035–146, #111–035–144, 1:10,000). For immunocytochemistry, rabbit anti-pS129 aSyn (Abcam, ab51253, 1:200), mouse anti-β-3-tubulin (BioLegend, 801202, 1:500), rabbit anti-β-3-tubulin (BioLegend, 802001, 1:500), sheep anti-TH (Novus, NB300–110, 1:500) mouse anti-MAP2 (Sigma, M4403, 1:500).
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3

Antibody Immunofluorescence and Western Blot Analysis

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IF primary: rabbit anti-CENP-A (Active Motif, #39713, 1:1000); guinea pig anti-CENP-C31 (link) (1:1000); rabbit anti-ATPsyn-α (Abcam #ab151229, 1:100); mouse anti-ATPsyn-β (Abcam #ab14730, 1:200); goat anti-ATPsyn-γ (Abcam #ab190310, 1:200); rat anti-mCherry (Chromotek 5F8 1:500); mouse anti-tubulin (Sigma DM1A, 1:100); guinea pig anti-MEI-S33232 (link) (gift from T. Orr-Weaver 1:500) and rabbit anti-GFP (Santa Cruz SC-8334). Guinea pig anti-ATPsyn-βlike antibodies (1:200) were generated by co-injection of two KLH and BSA conjugated peptides CKTDAELVKKKDE (amino acid 68–80) and GDAPPAKAEAKKDEK (amino acid 575–587) marked on Supplementary Fig. 1D. IF secondary: Alexa-488, -546, -647-coupled goat anti-mouse, goat anti-rabbit or goat anti-guinea pig (Life Technologies, 1:500). Western analysis: rabbit anti-CENP-A (Active Motif, #39713, 1:1000), mouse anti-ATPsyn-α (Abcam #ab14748, 1:1000), mouse anti-ATPsyn-β (Abcam #14730, 1:1000), rat anti-GST (Chromotek 6G9, 1:1000), mouse anti-red (Chromotek 6G6, 1:1000), mouse anti-poly-his (Sigma Aldrich #H1029, 1:1000), mouse anti-tubulin (Sigma Aldrich #T5168, 1:10,000) and rabbit anti-histone 3 (Millipore 17–10,254; 1:50,000); guinea pig anti-ATPsyn-βlike (1:1000). Uncropped scans of blots are provided in Supplementary Figure 5.
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4

Antibody Usage in Protein Detection

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We used the following antibodies: A300-516A (Thermo Fisher), polyclonal anti-DNA-PKcs 1:5000; EPR2302 (GeneTex, Inc), monoclonal anti-FANCD2 1:2000; T5168 (Merck), monoclonal anti-αTubulin 1:8000; sc73614 (Santa Cruz Biotechnology), monoclonal anti-Vinculin 1:1000; A0545 (Merk), HRP (horseradish peroxidase)-conjugated anti-rabbit IgG 1:10 000; A0168 (Merk), HRP-conjugated anti-mouse IgG 1:10 000.
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5

Western Blot Analysis of Protein Samples

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Total cell lysates were boiled for 10 min at 99°C in 1× Laemmli buffer supplemented with 4.2% (vol/vol) β-mercaptoethanol. Proteins were separated by electrophoresis on precast 4 to 20% SDS-PAGE gels (Bio-Rad Laboratories) and semidry blotted on nitrocellulose membranes. Membranes were blocked with a 5% (wt/vol) lowfat milk solution in PBS. Proteins were detected with the following primary antibodies: rabbit anti-Flag (F7425; Sigma-Aldrich), rabbit anti-HA (ab9110; Abcam), and rabbit anti-MED25 (NBP2-55868; Novus Biologicals). As a control for equal loading, we used mouse anti-α-tubulin (T5168; Merck) or rabbit anti-glyceraldehyde-3-phosphate dehydrogenase (anti-GAPDH) (ab9485; Abcam). We used the following secondary antibodies: streptavidin-horseradish peroxidase (HRP) (RPN1231; Amersham Life Science), ECL donkey anti-rabbit IgG–HRP (NA934V, GE Healthcare), and ECL sheep anti-mouse IgG–HRP (NA931V; GE Healthcare). Protein bands were visualized by using Pierce ECL Western blotting substrate (32106; Thermo Fisher Scientific) and a chemiluminescence imager (Amersham Imager 600; GE Healthcare).
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6

Western Blot Analysis of MAGEA4 Protein

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Cellular, vesicular, or purified protein samples were suspended in Laemmli buffer and denatured for 10 min at 100°. The lysates were separated electrophoretically using 10% SDS-PAGE gel and blotted onto a PVDF membrane using Trans-Blot SD Semi-Dry Transfer Cell (Bio-Rad Laboratories; Hercules, CA, USA). Affinity-purified rabbit polyclonal antibodies against MAGEA4 (2.5 mg/mL) [53 (link)] were used for immunoblotting at dilutions of 1:10,000. Alpha-tubulin (dilution 1:4000; T5168; Merck; St. Louis, MO, USA), anti- TSG101 (dilution 1:10,000, T5701; Merck; St. Louis, MO, USA), anti-E2Tag antibody 5E11 (dilution 1:10,000; Icosagen; Tartu, Estonia) were used in different experiments. Goat anti-rabbit (1 mg/mL, LabAS; Tartu, Estonia) and goat anti-mouse (1 mg/mL, LabAS) antibodies conjugated with HRP were used as secondary antibodies at a dilution of 1:10,000. Protein signals were detected using ECL Western blotting (GE Healthcare; Marlborough, MA USA) reagents. The staining of SDS-PAGE gels was performed with PageBlue Protein Staining Solution (Thermo Scientific; Waltham, MA, USA).
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7

Antibody Generation and Characterization

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Primary antibodies against the following proteins were used: rabbit anti-RNP-8 (Kim et al. 2009 (link)); mouse anti-NPC (Mab414, Covance), anti-tubulin (T5168, Sigma), and anti-GLD-2 (Millonigg et al. 2014 (link)); and rat anti-GLD-3 (Eckmann et al. 2002 (link)). The mouse anti-GLD-2 (Millonigg et al. 2014 (link)) recognized the C terminus of the protein. The rabbit anti-GLD-2 antibody used in the immunoprecipitation experiments was generated by immunizing New Zealand white rabbits with an epitope that covered amino acid 959–1113 of GLD-2, fused to a GST-affinity tag. The fusion protein had been expressed in BL21 bacteria and purified via a GST column to homogeneity. An analogously prepared MBP-fusion protein had been coupled to Hi-TRAP NHS columns (GE Healthcare) and used for affinity purification of the immune serum rb184.
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8

Protein Expression and Analysis Protocol

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Whole cell lysates were prepared and separated using SDS‐PAGE gel electrophoresis at 125 volts (V) for 1.5 h, before transfer at 100 V for 1 h, as previously described.19 Membranes were blocked before being probed overnight at 4°C with primary antibodies against Cx43, β‐catenin (Cell Signaling Technology D10A8), N‐cadherin, fibronectin, collagen I (Abcam ab34710), (all at 1:1000) and α‐tubulin (Sigma‐Aldrich T5168), at a dilution of 1:20,000, as a house‐keeping protein. After washing, membranes were probed with secondary antibody (goat anti‐rabbit 800 and/or goat anti‐mouse) at 1:20,000 for 1 h at RT. Bands were visualised using an Odyssey Fc imaging unit before semi‐quantification and analysis using ImageStudioLite software (5.2.5).
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9

Chromatin Regulation Protocols in Cell Lines

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Eco-Pack 2–293 cells (Clontech) and 293T cells (gifted from Dr. Yao [Ito et al., 2001 (link)]) were grown in Dulbecco’s Modified Eagle’s Medium supplemented with 10% fetal calf serum. Wild-type and Suv39h dn iMEFs (Lachner et al., 2001 (link)) were grown in Dulbecco’s Modified Eagle’s Medium supplemented with 10% fetal calf serum, 0.1 mM beta-mercaptoethanol, and 1x non-essential amino acids. The following antibodies were used in this study: anti-FLAG-M2 (F3165: Sigma-Aldrich, RRID:AB_259529), anti-FLAG-M2-HRP (A8592: Sigma-Aldrich, RRID: AB_439702), anti-α-tubulin (T5168: Sigma, RRID: AB_477579), anti-Suv39h1 (8729: Cell Signaling, RRID: AB_10829612), anti-H3 (ab21054: Abcam, RRID: AB_880437), anti-H3K9me3 (ab8898: Abcam, RRID: AB_306848 and 2F3 (RRID: AB_2616099)(Chandra et al., 2012 (link)), anti-HP1β (BMP002: MBL, RRID: AB_843158), and anti-GST (27-4577-01: GE Healthcare, RRID: AB_771432).
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10

Western Blot Analysis of Cellular Proteins

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Proteins were separated by SDS-PAGE in 10% gels and transferred to polyvinylidene difluoride (PVDF) membranes. Membranes were blocked with PVDF Blocking Reagent for Can Get Signal (Toyobo, Osaka, Japan) for 1 h. The membranes were incubated with primary antibodies against mouse GCAT (1:1,000; sc-86466, Santa Cruz Biotechnology, Dallas, TX, USA), mouse SHMT2 (1:1,000; #12762, Cell Signaling Technology, Danvers, MA, USA), β-ACTIN (1:10,000; A1978, Sigma, St. Louis, MO, USA) or α-TUBULIN (1:50,000; T5168, Sigma, St. Louis, MO, USA) for 1 h at room temperature; Can Get Signal Immunoreaction Enhancer Solution 1 (Toyobo) was used for dilution. The membranes were then incubated with horseradish peroxidase-conjugated secondary antibodies against goat IgG (1:20,000; HAF109, R&D Systems, Minneapolis, MN, USA), rabbit IgG (1:10,000; G-21234, Thermo Fisher Scientific, Waltham, MA,USA) or mouse IgG (1:10,000; G-21040, Life Technologies, Carlsbad, CA, USA) for 1 h at room temperature; Can Get Signal Immunoreaction Enhancer Solution 2 (Toyobo) was used for dilution. Bands were detected with a bio-imaging analyser, EZ-Capture ST (ATTO, Tokyo, Japan) using ECL Select Western Blotting Detection Reagent (GE Healthcare, Buckinghamshire, UK).
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