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84 protocols using mouse anti β actin

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

Antibody Reagents for Western Blot

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The mouse anti-FLAG (Sigma-Aldrich, USA), mouse anti-Myc (Sigma-Aldrich, USA), rabbit anti-ATP6V1A (Sigma-Aldrich, USA), mouse anti-β-actin (Proteintech, China), mouse anti-HA epitope tag (Proteintech, China), mouse anti-GST (Sigma-Aldrich, USA), mouse anti-His epitope tag (Proteintech, China), rabbit IgG (Solarbio, China) and the secondary antibodies (HRP-conjugated anti-mouse IgG antibody [Sigma-Aldrich, USA], HRP-conjugated anti-rabbit IgG antibody [Genescript, China], FITC-conjugated goat anti-mouse IgG antibody [ZSGB. Bio, China], Alexa Fluor 647-labeled goat anti-rabbit IgG (H + L) [Beyotime, China]) and gold-labeled goat anti-mouse IgG antibody (Sigma-Aldrich, USA) were purchased from the indicated vendors. Murine sera against M, P, or G protein were produced in our laboratory.
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3

Investigating Phosphatase Regulation of Alpha-Synuclein

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Both protease and phosphatase inhibitors were purchased from Roche (Basel, Switzerland). Primary antibodies used in western blotting are as follows: Mouse anti-β-actin (1:5000, Proteintech), Rabbit anti-p-α-syn (1:1000, Abcam), Mouse anti-p-α-syn (1:1000, Wako), Mouse anti-α-syn (1:1000, Santa Cruz), Rabbit anti-Human α-syn (1:2000, Abcam), Mouse anti-demethylate-PP2A (1:1000, Millipore), Mouse anti-PP2A (1:1000, BD biosciences), Mouse anti-β-tubulin (1:1000, Abcam), Mouse anti-PPP2R2A (1:1000, CST), Mouse anti-PPP2R2B (1:1000, Abcam), Rabbit anti-PPP2R2D (1:1000, Abcam), Mouse anti-PPP2R5A (1:500, Santa Cruz), Rabbit anti-PPP2R5D (1:5000, Abcam), Rabbit anti-PPP2R5E (1:1000, Abcam), Mouse anti-LCMT-1 (1:1000, Abcam), Rabbit anti-PME-1 (1:1000, Millipore), Mouse anti-GAPDH (1:3000, Sigma), Mouse anti-c-Myc (1:5000, Clontech), and Mouse anti-FLAG (1:500, Santa Cruz). Secondary antibodies are as follows: Goat anti-Rabbit IRdye680 (LI-COR Bioscience), Goat anti-Mouse IRdye680 (LI-COR Bioscience), Goat anti-Rabbit IRdye800 (LI-COR Bioscience), Goat anti-Mouse IRdye800 (LI-COR Bioscience), Goat anti-Rabbit Alexa Fluor 488 (Thermo Fisher Scientific). The inhibitor of protein phosphatase methylesterase-1 (PME-1), AMZ30, was purchased from MedChem Express (Shanghai, China). Dulbecco’s Modified Eagle’s Medium (DMEM), and fetal bovine serum (FBS) were purchased from Gibco.
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4

Western Blot Analysis of Apoptosis Markers

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Western blotting was performed as described previously20 (link). Antibodies were listed as follow: rabbit anti-SLFN11 (Santa Cruz Biotechnology, CA, USA), rabbit anti-Bax, rabbit anti-Bcl2, rabbit anti-caspase3, rabbit anti-cleaved-caspase3 and mouse anti-β-actin (Proteintech, IL, USA).
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5

Hepatitis B Virus Protein Expression Analysis

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Cells were lysed 72 h after transfection. Cell and tissue samples were lysed in RIRA (Sigma-Aldrich) buffer with PMSF (Sigma-Aldrich). Lysates were centrifuged for 10 min at 12000 × g, and protein in the supernatant was quantified using the BCA method (Pierce). SDS-PAGE and western blot analysis were performed according to standard procedures. Mouse anti-HBs, anti-HBx, anti-HBp, and anti-HBc antibodies were kindly provided by Dr. Quan Yuan from Xiamen University. Goat anti-MAN1A1 (Santa Cruz; 1:500 dilution), rabbit anti-MAN1A2 (Proteintech; 1:200 dilution), rabbit anti-MAN1B1 (GeneTex; 1:500 dilution), mouse anti-MAN1C1 (Abcam; 1:500 dilution) antibodies were used as the primary antibodies. Mouse anti-β-actin (Proteintech; 1:1000 dilution) was used as a reference for protein quantification. Goat anti-mouse IgG (Proteintech; 1:10000 dilution), goat anti-rabbit IgG (Proteintech; 1:10000 dilution), and donkey anti-goat IgG (Santa Cruz; 1:10000 dilution) were used as the secondary antibodies followed by enhanced chemiluminescence (ECL; ThermoFisher Scientific) detection.
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6

Antibody Production and Characterization

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The antibody against B2 protein of RGNNV was produced by aBIOTECH company (Jinan, China) through immunizing rabbits with B2 protein expressed in E. coli. The affinity and specificity of anti-B2 serum were confirmed by positive band in wtRGNNV-infected SSN-1 cells, but no signal was detected in non-infected SSN-1 cells through Western blotting assay (Figure S1). Other antibodies and reagents used in the current study were mouse anti-β-actin (66009-1, ProteinTech Group, Chicago, IL, USA), horseradish peroxidase (HRP) goat anti-mouse IgG (AS003, Abclonal, Wuhan, China), HRP goat anti-rabbit IgG (AS014, Abclonal, Wuhan, China), Alexa Fluor® 488 goat anti-mouse IgG (A-11001, Invitrogen, Grand Island, NY, USA), 4′,6-diamidino-2-phenylindole (DAPI) (C1002, Beyotime, Shanghai, China), proteinase inhibitor cocktail (P8340, Sigma, Darmstadt, Germany), phosphatase inhibitor cocktail 3 (P0044, Sigma, Darmstadt, Germany).
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Western Blot Analysis of Astrocyte Proteins

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Cultured astrocytes were lysed in RIPA buffer with 13 complete protease inhibitors (Roche). Protein levels were assessed with a Bradford assay with BSA as the standard. Approximately 10 µg of denatured proteins was separated by 8% SDS-polyacrylamide gel electrophoresis and blotted onto 0.22 µm PVDF membranes (Roche). Nonspecific binding was blocked with TBST (TBS-0.1% Tween-20) with 3% (w/v) nonfat milk for 2 h at room temperature. Membranes were incubated overnight at 4℃ in TBST with 5% milk and the following primary antibodies: rabbit anti-GFAP (1:1000, 20,044,021, Dako), rabbit anti-MAP2 (1:500, 17,490–1-AP, Proteintech), rabbit anti-S100 beta (1:1000, ab52642, Abcam), and mouse anti-β-actin (1:5000, 60,008–1-IG, Proteintech). Membranes were then incubated at room temperature for 2 h in TBST with 5% milk and secondary antibodies (1:5000, Invitrogen). Protein bands were detected by chemiluminescence (Tanon, Shanghai, China) and quantified by densitometry with ImageJ (ImageJ 7.0 software). Protein levels were normalized to the level of β-actin as a control.
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8

Western Blot Analysis of Inflammasome Proteins

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Western blotting was routinely performed as previously reported [20 (link)]. Mouse anti-β-actin (1:10,000, Proteintech, Chicago, IL), rabbit anti-NLRP3 (1:500, Novus Biologicals, CO, USA), rabbit anti-caspase-1 (1:500, Proteintech), mouse anti-ASC (1:500, Santa Cruz, CA, USA), rabbit anti-GSDMD (1:1000, CST, Danvers, USA), mouse anti-pro-IL-1β (1:1000, Proteintech), rabbit anti-cleaved IL-1β (1:1000, Novus Biologicals), rabbit anti-pro-IL-18 (1:1000, Proteintech), rabbit anti-cleaved IL-18 (1:300, Bioss, Beijing, China), and rabbit anti-caspase-11 (1:1000, Novus Biologicals) were used. The densities of protein blots were quantified by using ImageJ software (NIH, Bethesda, MD) and normalized to the level of β-actin.
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9

Western Blot Analysis of Inflammatory Markers

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The collected Raw264.7 cells and bone surrounding soft tissues were homogenized and lysed in lysis buffer including RIPA and phenylmethanesulfonyl fluoride (PMSF; Beyotime Institute of Biotechnology, Haimen, Jiangsu, China). The lysates (30 μg/lane) were separated on 10% gels and were transferred onto polyvinylidene difluoride membranes (Beyotime Institute of Biotechnology). The membranes were blocked with 5% (w/v) BSA in Tris-buffered saline with 0.1% (w/v) Tween 20 (TBST) and probed with primary antibodies: mouse anti-ABCA1 (1: 1000; Abcam Biotechnology), rabbit anti-ABCG1 (1: 2500; Abcam Biotechnology), rabbit anti-Cav-1 (1: 1500; Abcam Biotechnology), rabbit anti-TNF-α (1: 1000; Abcam Biotechnology), rabbit anti-IL-6 (1: 1000; Cell Signaling Technology), rabbit anti-IL-1β (1: 1,000; Abcam Biotechnology), and mouse anti-β-actin (1: 4000; Proteintech, Rosemont, USA) at 4°C overnight. After washing, the bound antibodies were detected using optimal horseradish peroxidase-conjugated secondary antibodies: goat anti-rabbit IgG (1: 10 000) and goat anti-mouse IgG (1: 10 000; Merck Millipore, Darmstadt, Germany) and were visualized using the enhanced chemiluminescence reagents (Bio-Rad Laboratories, Hercules, USA). The relative levels of the target proteins to that of control β-actin were analyzed densitometrically using the Quantity One software (version 4.0, Bio-Rad).
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10

Investigating Autophagy Regulation via PHB2

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The following antibodies were used: rabbit anti-LC3B (Cell Signaling Technology, Boston, MA, USA, 3868), rabbit anti-PHB2 (Cell Signaling Technology, 14085), rabbit anti-SQSTM1/p62 (ABclonal Technology, Wuhan, China, A77580), normal rabbit IgG (ABclonal Technology, AC005), mouse anti-PHB2 (Proteintech, Wuhan, China, 66424-1-Ig), mouse anti-β-actin (Proteintech, 66009-1-Ig), rabbit anti-flag (Proteintech, 20543-1-AP), and rabbit anti-EV-A71 VP1 (Genetex, Irvine, CA, USA, GTX132339).
The following reagents were used: 3-methyladenine (3-MA; Selleck, Shanghai, China, S2767), rapamycin (Selleck, S1039), nontargeting siRNA (SiNC) and siRNA targeting PHB2 (SiPHB2) and ATP6AP2 (SiATP6AP2) (RiboBio, Guangzhou, China), Lipofectamine 3000 Reagent (Invitrogen, Carlsbad, CA, USA, L3000015), Lipofectamine RNAiMAX Reagent (Invitrogen, 13778-150), and primers for PCR and real-time quantitative PCR (RT-qPCR) (Invitrogen).
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