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Tris glycine sds gels

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4–20% Tris Glycine SDS gels are pre-cast polyacrylamide gel electrophoresis (PAGE) gels used for the separation of proteins based on their molecular weight. These gels have a gradient of 4% to 20% polyacrylamide concentration, which allows for the effective separation of a wide range of protein sizes. The gels are made with Tris-Glycine-SDS buffer system, which is a standard buffer system for SDS-PAGE.

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5 protocols using tris glycine sds gels

1

Western Blot Analysis of One-Carbon Metabolism Enzymes

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Tissue lysates were prepared in Kontes tubes with disposable pestles using RIPA Buffer (Cell Signaling Technology) supplemented with phenylmethylsulphonyl fluoride (Sigma), and protease and phosphatase inhibitor cocktails (Roche). The BCA protein assay (Thermo) was used to quantify protein concentrations. Equal amounts of protein (15–30 μg) were separated on 4–20% Tris Glycine SDS gels (BioRad) and transferred to polyvinylidene difluoride membranes (BioRad). Membranes were blocked for 30 minutes at room temperature with 5% milk in TBS supplemented with 0.1% Tween20 (TBST) then incubated with primary antibodies overnight at 4°C. After incubating with horseradish peroxidase conjugated secondary antibodies (Cell Signaling Technology), membranes were developed using SuperSignal West Pico or Femto chemiluminescence reagents (Thermo). Blots were stripped with 1% SDS, 25mM glycine (pH 2) before re-probing. The following primary antibodies were used for western blot analyses:ALDH1L2 (LifeSpan Bio; LS-C178510), DHFR (LifeSpan Bio; LS-C138829), MTHFR (LifeSpan Bio; LS-C157974), SHMT1 (Cell Signaling; 12612S), SHMT2 (Cell Signaling; 12762S), MTHFD1 (ProteinTech; 10794-1-AP), MTHFD2 (ProtenTech; 12270-1-AP), Actin (Abcam, ab8227).
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2

Western Blot Analysis of HMGB1 and TLR4

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Thirty micrograms of renal cortex was homogenized, and the whole homogenate was used for Western blot analysis as previously described [27 (link)]. Briefly, samples were resolved on 4–20% Tris-glycine-SDS gels (Bio-Rad, Hercules, CA) and proteins were transferred to PVDF membranes (Millipore Sigma, Burlington, MA). Protein expression was determined using two-color immunoblots using primary antibodies to HMGB1 (cat# MA1–20338, 1:1000 dilution; Thermo Fisher Scientific, Lafayette, CO), and TLR4 (cat# 217274, 1:300 dilution; Abcam, Cambridge, MA). Specific protein bands were detected using an Odyssey infrared imager (LI-COR Biosciences, Lincoln, NE) with AlexaFluor 680 and IRDye800 (Molecular Probes, Eugene, OR) conjugated secondary antibodies. Protein concentrations were determined by standard BCA reagent (Thermo Scientific) using BSA as the standard. Protein loading was normalized to glyceraldehyde 3-phosphate dehydrogenase (Cell Signaling Technologies, Danvers, Massachusetts).
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3

Western Blot Analysis of One-Carbon Metabolism Enzymes

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Tissue lysates were prepared in Kontes tubes with disposable pestles using RIPA Buffer (Cell Signaling Technology) supplemented with phenylmethylsulphonyl fluoride (Sigma), and protease and phosphatase inhibitor cocktails (Roche). The BCA protein assay (Thermo) was used to quantify protein concentrations. Equal amounts of protein (15–30 μg) were separated on 4–20% Tris Glycine SDS gels (BioRad) and transferred to polyvinylidene difluoride membranes (BioRad). Membranes were blocked for 30 minutes at room temperature with 5% milk in TBS supplemented with 0.1% Tween20 (TBST) then incubated with primary antibodies overnight at 4°C. After incubating with horseradish peroxidase conjugated secondary antibodies (Cell Signaling Technology), membranes were developed using SuperSignal West Pico or Femto chemiluminescence reagents (Thermo). Blots were stripped with 1% SDS, 25mM glycine (pH 2) before re-probing. The following primary antibodies were used for western blot analyses:ALDH1L2 (LifeSpan Bio; LS-C178510), DHFR (LifeSpan Bio; LS-C138829), MTHFR (LifeSpan Bio; LS-C157974), SHMT1 (Cell Signaling; 12612S), SHMT2 (Cell Signaling; 12762S), MTHFD1 (ProteinTech; 10794-1-AP), MTHFD2 (ProtenTech; 12270-1-AP), Actin (Abcam, ab8227).
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4

Western Blot Antibody Characterization

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The antibodies used in these assays comprised monoclonal mouse anti(α)-influenza A NP blend clone A1/A3 (Millipore, 1:1,000 dilution); mouse α-Flag clone M2 (Sigma, 1:5,000); mouse α-HPV16 E7 clone ED17 (Santa Cruz, 1:200); mouse α-HPV16 E7 clone 8C9 (Invitrogen, 1:150); mouse α-HPV16 E6 clone 6F4 (Euromedex, 1:200); mouse α-HPV16 L1 Camvir-1 (BD Biosciences, 1:5,000); mouse α-pRb (1:500 dilution); polyclonal rabbit α-HPV16 L2 11–200 (described in [42 (link)], 1:5,000) and rabbit α-GAPDH (Santa Cruz, 1:1.000); goat α-rabbit HRP and goat α-mouse HRP (both from Biorad,1:25,000). Proteins were separated on 10 to 15% gradient Tris-glycine SDS gels (Biorad) using the Tris-glycine SDS buffer system. Western blotting was performed by electrophoretic transfer of proteins to a polyvinyl difluoride (PVDF) membrane (Millipore).
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5

Comprehensive Immunoblotting Analysis of Signaling

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Antibodies against Vinculin (13901), AKT1 (2938), AKT2 (3063), pAKT T308 (13038), pAKT S473 (4060), c-PARP (D214) (5625), pPRAS40 T246 (13175), PRAS40 (8858), pAKT1 S473 (9018), pAKT2 S474 (8599), panAKT (4685), pBAD S136 (4366), BAD (9239), pChk2 T68 (2197), Chk2 (6334), LC3B (3868), GAPDH (5174), pS6 S235/236 (4858) and S6 (2217) were purchased from Cell Signalling. Cell lysates were prepared using 1× lysis buffer (9803, Cell Signalling) supplemented with 1% sodium dodecyl sulfate (SDS) (Sigma, L3771). Following sonication, lysates were quantified using the DC assay (Bio-Rad, 5000111) and equal amount of protein lysates were loaded into Tris-Glycine-SDS gels (Bio-Rad, 567-1095). Proteins were transferred into nitrocellulose membrane (Bio-Rad, 1704271) using the Trans-Blot Turbo Transfer System (Bio-Rad, 1704150) and were detected using Enhanced Chemiluminescence (ECL, Amersham, RPN2106/Bio-Rad, 1705062). Signal was captured on film (Amersham Hyper films ECL, 28906836) and developed using the Xorgaph X4 imaging system. Western blots were performed at least twice and a representative experiment is shown.
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