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Westernbright ecl solution

Manufactured by Advansta
Sourced in United States, Israel

WesternBright ECL solution is a chemiluminescent substrate used for the detection of proteins in Western blot analysis. It is designed to provide a sensitive and reliable method for visualizing protein bands on membranes.

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4 protocols using westernbright ecl solution

1

Histone Acetylation Profiling in Neuro2a Cells

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Neuro2a cells were treated with different
concentrations of compounds and vehicle. The cells incubated with
different treatments were washed with 1× PBS and harvested in
1× laemmli sample buffer. The cell lysate total protein relative
concentration estimated with amido black method and an equal amount
of protein was loaded onto 12% sodium dodecyl sulfate-polyacrylamide
gel electrophoresis gel. Blocking was done for 1 h at room temperature,
followed by incubation with primary antibodies H3 acetyl (1:1000),
H4 acetyl (1:2000), and H3 PAN (1:3000) overnight at 4 °C. The
blots were washed with 1× PBST, and incubation in secondary antibody
anti-rabbit (1:5000) was done at room temperature for 1 h. The blots
were again washed with 1× PBST and then developed with the Bio-Rad
ChemiDoc instrument using WesternBright ECL solution (advansta). The
band intensities of Western blots were measured using ImageJ software.
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2

Exosome and Cell Lysate Protein Analysis

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The total cell lysates for colon cancer cells (10 µg) and exosomes (10 µg) were separated on 12% sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) at 120 V for 90 min and transferred to nitrocellulose membranes. After blocking in 5% non-fat milk in tris-buffered saline with tween 20 (TBST) for 2 h, the membranes were blotted with primary antibodies at 4 °C overnight for 16 h, followed by secondary bodies at a dilution of 1:2000. The protein bands were visualized using WesternBright ECL solution (Advansta, San Jose, CA, USA) and the signals were captured using a C-digit blot scanner (LI-COR). Primary antibodies against KRAS, HSC70, CD63, CD9 and CD81, and secondary antibodies (mouse anti-rabbit and goat anti-mouse) were obtained from Santa Cruz Biotechnology (Santa Cruz, CA, USA). Primary antibodies against actin and p53 were purchased from Millipore (Burlington, VT, USA) while primary antibodies against ACSL4 were obtained from Thermo Fisher Scientific (Waltham, MA, USA). Western blotting was performed in triplicate for each tested protein.
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3

Protein Extraction and Western Blot Analysis

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Proteins were extracted by the TCA (Trichloroacetic acid) method if not stated otherwise. Samples were loaded into 7.5% or 4–15% gradient Tris-Glycine BioRad stain-free pre-casted gels for routine analysis. Samples from pull-downs analyses were loaded into 3–8% gradient NuPAGE Tris-Acetate gels (Invitrogen). Gels were transferred to PVDF membranes using a semi-dry transfer machine (BioRad) and hybridized on TBST 5% milk with the appropriate antibodies. Antibodies were used at the suggested dilution: anti-HA-HRP (3F10, Roche) 1:1000 (1:500 for pull-down analysis), anti-Ubiquitin (P4D1, Biolegends) 1:1000, anti-Smt3 (provided by B.Palancade) 1:2000, anti-G6PDH (A9521, Sigma) 1:20,000, anti-Pgk1-HRP (22C5D8, Abcam) 1:10,000, anti-GST-HRP (GERPN1236, Sigma) 1:5000. When required, HRP-conjugated secondary antibodies from Cell Signaling (anti-Mouse-HRP, anti-Rabbit-HRP) were used at 1:10,000 dilution. Western blots were revealed with WesternBright ECL solution (Advansta) or WesternBright Sirius HRP subsrate if required (Advansta). Blots were cropped in order to arrange figures without any lane substitution and conserving the area with immunoblotting signal (examples of uncropped images are available in Supplementary Figure 9).
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4

Genistein Induces Protein Expression Changes

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Following the exposure of MCF-7 and differentiating 3T3-L1 cells to genistein, each group of cells was subjected to lysis in radio-immunoprecipitation assay (RIPA) buffer [1% nonyl phenoxypolyethoxylethanol (NP)-40, 150 mM NaCl, 0.05% deoxycholic acid (DOC), 1% sodium dodecyl sulfate (SDS) and 50 mM tris(hydroxymethyl)aminomethane (Tris), pH 7.5] containing protease inhibitors for 1 h at 4°C. The supernatant was separated by centrifugation and the protein concentration was determined using a Bradford protein assay kit 2 (Bio-Rad). The proteins were then transferred to nitrocellulose membranes (0.45 μm). The membranes were blocked with 1% bovine serum albumin (BSA) for 1.5 h, washed twice with phosphate-buffered saline (PBS) containing 0.2% Tween-20, and incubated with the respective primary antibodies [cyclin D1, anti-ERα, -B-cell lymphoma 2 (-Bcl-2), -Bcl-2-associated X protein (-Bax) and -β-actin; Santa Cruz Biotechnology, Inc.] overnight at 4°C. The next day, the immunoreaction was continued using secondary rabbit anti-rabbit horseradish-peroxidase-conjugated antibodies following washing for 2 h at room temperature. Bands were detected with MicroChemi (DNR Bio-Imaging System, Ltd., Jerusalem, Israel) using WesternBright ECL solution (Advansta Inc., Menlo Park, CA, USA).
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