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Mouse anti ub

Manufactured by Santa Cruz Biotechnology
Sourced in United States

The Mouse anti-Ub is a laboratory reagent that can be used for the detection of ubiquitin in biological samples. It is a monoclonal antibody raised in mice that specifically binds to ubiquitin, a small protein that plays a crucial role in cellular processes such as protein degradation and signaling.

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8 protocols using mouse anti ub

1

Comprehensive Protein Detection Methodology

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Proteins were detected using the following primary antibodies: anti-enterovirus VP1 clone 5-D8/1 antibody purchased from Dako (Denmark); Mouse anti-Ub, Mouse anti-MAT1, Mouse anti-CDK7, and Mouse anti-Cyclin H antibodies purchased from Santa Cruz (USA); Mouse monoclonal to RNA polymerase II CTD and Rabbit monoclonal to RNA polymerase II CTD (phosphor S5) antibodies purchased from Abcam (USA); Mouse anti β-actin purchased from Proteintech; Rabbit monoclonal CDK2 and CDK4, Rabbit monoclonal phosphor-CDK2 and CDK4, Mouse monoclonal pRb, Rabbit monoclonal pRb-phospho Ser780, pRb-phospho Ser795 and pRb-phospho Ser807/811 antibodies purchased from Cell Signaling (USA); Rabbit polyclonal Lamin B1, Mouse monoclonal c-Myc, Mouse monoclonal HA-Tag and Mouse Monoclonal Flag antibodies purchased from Sigma (USA); Goat anti-mouse IgG horseradish peroxidase-conjugated secondary antibody and goat anti-rabbit IgG horseradish peroxidase-conjugated secondary antibody purchased from Thermo Fisher Scientific (USA).
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2

Western Blot Analysis of Epithelial-Mesenchymal Transition Markers

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Triton X‐100 lysis buffer [20 mm Tris (pH 7.4), 2 mm EDTA, 150 mm sodium chloride, 1 mm sodium deoxycholate, 1% Triton X‐100, 10% glycerol, 2 pills protease inhibitor cocktail (Roche)] was used to collect protein from cells. Protein samples were heat‐denatured and equally loaded, separated on 8–12% SDS/PAGE gel, transferred onto a polyvinylidene difluoride membrane (GE Healthcare, Buckinghamshire, UK), and blocked with 5% nonfat dry milk. Primary antibodies for western blot analyses included mouse anti‐α‐tubulin (1 :  20 000 dilution; Sigma), rabbit anti‐Snail (1 : 1000 dilution; Cell Signaling, Danvers, MA, USA), rabbit anti‐Slug (1 : 1000 dilution; Cell Signaling), rabbit anti‐CHIP (1 : 1000 dilution; Abgent, San Diego, CA, USA), mouse anti‐Flag (1 : 3000 dilution; Abcam), mouse anti‐GFP (1 : 1000 dilution; Santa Cruz), mouse anti‐HA (1 : 1000 dilution; Abcam, Cambridge, MA, USA), mouse anti‐Vimentin (1 : 1000 dilution; Santa Cruz, Santa Cruz, CA, USA), mouse anti‐E‐cadherin (1 : 5000 dilution; BD Biosciences, San Jose, CA, USA), and mouse anti‐Ub (1 : 5000 dilution; Santa Cruz). Membranes were incubated with horseradish peroxidase‐conjugated anti‐mouse or anti‐rabbit secondary antibody (1 : 5000 dilution; Cell Signaling) for 1 h, and chemiluminescence signals were detected by ECL substrate (GE Healthcare, Chicago, IL, USA).
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3

Ubiquitin-Mediated Protein Regulation

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The following chemicals were used: HA-tagged ubiquitin-vinyl methyl ester, HA-UbVME (Enzo Life Science, Farmingdale, NY), forskolin (FSK) (Sigma-Aldrich), USP7 inhibitor HBX41108 (Tocris, Minneapolis, MN), USP10 inhibitor spautin-1 (Cayman, Ann Arbor, MI), cycloheximide (Sigma-Aldrich). All other chemicals were purchased from Sigma-Aldrich (St Louis, MO) or EMD Millipore (Billerica, MA), unless otherwise specified. Rabbit polyclonal anti-NHE3 antibody EM450 and mouse monoclonal anti-VSVG antibody P5D4 were previously described.20 (link),21 (link) The following commercial antibodies were used: rabbit anti-HA (Cell Signaling), mouse anti-Ub (Santa Cruz), rabbit anti-USP7 (Cell Signaling), rabbit anti-USP10 (Cell Signaling), rabbit anti-Nedd4–2 (Abcam, Cambridge, MA), mouse anti-Rab5a (Cell signaling), mouse anti-Rab7 (Santa Cruz), rabbit anti-VSVG (Sigma), and mouse anti-β-actin (Sigma).
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4

Quantitative RT-PCR and Western Blot Analysis of Liver Tissues

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Total RNA of liver tissues was isolated with the RNeasy Mini Kit (Qiagen, Hilden, Germany) according to the manufacturer’s instructions. Eight hundred nanograms total RNA was reverse-transcribed into cDNA using the PrimeScript RT reagent Kit (Takara, Tokyo, Japan) following the manufacturer’s instructions. The PCR amplification products were quantified by SYBR-green based qRT-PCR (Takara) following a standard procedure. The mRNA expression levels of target genes were normalized by β-Actin. Primer sequences are provided in Table 1.

Primers Used for qRT-PCR

GeneSequence 5′—3′ forwardSequence 5′—3′ reverse
β-ActinGTGACGTTGACATCCGTAAAGAGCCGGACTCATCGTACTCC
Il-6GCTACCAAACTGGATATAATCAGGACCAGGTAGCTATGGTACTCCAGAA
Il-1βTGTAATGAAAGACGGCACACCTCTTCTTTGGGTATTGCTTGG
TnfαTTCTATGGCCCAGACCCTCATTTGCTACGACGTGGGCTAC
Dj-1GTGCAGTGTAGCCGTGATGTCCTCCTGGAAGAACCACCAC
Liver tissue or cell samples were processed to Western blotting analysis as we previously described.28 (link) Primary antibodies were rabbit anti-DJ-1 (Abcam, Cambridge, MA), mouse anti-PARKIN (Santa Cruz Technology, Santa Cruz, CA), mouse anti-Ub (Santa Cruz Technology), rabbit anti-LC3B (Proteintech, Wuhan, China), rabbit anti-PHB (Proteintech), rabbit anti-SQSTM1 (Cell Signaling Technology), rabbit anti-ATG5 (Cell Signaling Technology), and anti-β-actin (Sigma-Aldrich).
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5

Western Blot Analysis of Subcellular Proteins

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For Western blot analysis, cells were harvested and lysed in RIPA lysis buffer (Cell Signal Technology). To investigate subcellular distribution of proteins, nuclear and cytoplasmic fractions were enriched using Nuclear and Cytoplasmic Protein Extraction Kit (CoWin Bioscience). Western blot assays were followed according to an established protocol (20 (link)). Antibody used included mouse anti-GFP (Abmart), rabbit anti-acetyl Lysine (Abcam), rabbit anti-SUMO1 (Abcam), rabbit anti-Lamin B1 (Abcam), mouse anti-Ub (Santa Cruz), rabbit anti-USP49 (NOVUS), mouse anti-Flag (Proteintech), mouse anti-GAPDH (Thermo Fisher Scientific), mouse anti–β-tubulin (Thermo Fisher Scientific), rabbit anti-GRα (Abcam), rabbit anti-GRβ (Abcam). For protein stability detections, cells were treated with proteasome inhibitor MG132 (20 μmol/L, Sigma-Aldrich) for 6 hours or protein synthesis inhibitor Cycloheximide (CHX, 100 μg/mL, Sigma-Aldrich) for indicate time before harvest.
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6

Antibody against SARS-CoV-2 N Protein Peptide

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PVM antibody against Cys-conjugated peptide SQQLNIVDDTPDDDI of the viral N protein sequence (residue 379–393)49 (link) was raised in rat commercially (Bio-Synthesis, Lewisville, TX). Primary antibodies used in immunoblot (IB or Western) and immunoprecipitation (IP) were: mouse anti-FLAG (Sigma, SLBF6631/F1804), rabbit anti-FLAG (Sigma, F7425), mouse anti-V5 (Thermo scientific, MA5–15253), rabbit anti-Myc (C-Myc) (Thermo scientific, PA1–981), mouse anti-Ub (Santa cruz, sc-8017), mouse anti-IκBα (Santa cruz, sc-56710), mouse anti-GAPDH (Santa cruz, sc-365062), mouse anti-β actin (Santa cruz, sc-81178), goat anti-RIGI (Santa cruz, sc-48929). The HRP-conjugated secondary antibodies were: goat anti-mouse (Santa cruz, sc-2031), goat anti-rabbit (Santa cruz, sc-2030), and mouse anti-goat (Santa cruz, sc-2354).
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7

Western Blot Antibody Validation

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Antibodies used for western blot included rabbit anti-NSD3 (WHSC1L1; Cell Signaling Technology, 92056), rabbit anti-GAPDH (Cell Signaling Technology, 5174), rabbit anti-CBLB (Cell Signaling Technology, 9498), rabbit anti-IFITM1 (Cell Signaling Technology, 13126), mouse anti-VHL (Santa Cruz, SC135657), rabbit anti-cMyc (Cell Signaling, 9402), rabbit anti-HA tag (Cell Signaling, 3724), mouse anti-Flag tag (Sigma, F1804), mouse anti-Ub (Santa Cruz, SC8017), rabbit anti-cleaved caspase-3 (Cell Signaling, 9661), rabbit anti-cleaved caspase-7 (Cell Signaling, 8438) and the HRP-linked secondary anti-mouse IgG antibody (7076) and anti-rabbit IgG antibody (7074) from Cell Signaling Technology. Anti-FLAG M2 magnetic bead was obtained from Sigma (cat# M8823).
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8

Ubiquitination Analysis of GLI Transcription Factors

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Cells were transfected using lipofectamine 2000 according to the manufacturer's instructions. Forty‐eight hours after transfection, cells were harvested for immunoprecipitation and western blot analysis with standard protocols. To examine the ubiquitination levels of GLI2 and GLI3, A549 cells were transfected with Myc‐GLI2, HA‐GLI3 and different SPOP mutants. Before cell harvesting, the cells were treated by MG132 (50 mmol/L/mL) for 4 hours to prevent protein destabilization. Cells were first lysed by 100 mL denaturing buffer (1% SDS, 50 mM Tris, pH 7.5, 0.5 mmol/L EDTA and 1 mmol/L DTT) and incubated at 100°C for 5 minutes. The lysates were diluted with 900 mL lysis buffer and subjected to immunoprecipitation and western blot. The antibodies used for western blot analyses were as follows: mouse anti‐Fg (Sigma, Darmstadt, Germany); mouse anti‐ACTIN (Genscript, Corporation, Piscataway, NJ, USA); rabbit anti‐GLI1 (ABclonal, Woburn, MA, USA); rabbit anti‐PTCH1 (ABclonal); rabbit anti‐BCL2 (ABclonal); rabbit anti‐HHIP (ABclonal); rabbit anti‐AXIN2 (ABclonal); rabbit anti‐c‐Myc (ABclonal); rabbit anti‐CTGF (ABclonal); rabbit anti‐AREG (ABclonal); rabbit anti‐SPOP (ABclonal); mouse anti‐Myc (Santa Cruz Biotechnology, Santa Cruz, CA, USA); mouse anti‐HA (Santa Cruz); mouse anti‐Ub (Santa Cruz); goat antimouse HRP (Abmax) and goat anti‐rabbit HRP (Abmax, Beijing, China).
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