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5 protocols using m20006

1

Western Blot Analysis of ID1 Protein

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At 48 h following transfection with siRNA and recombinant ID1 plasmids, total proteins were extracted from SACC-83 cells with IP lysis buffer (Beyotime Institute of Biotechnology, Shanghai, China). The protein concentration was determined by BCA method and 25 µg of protein was loaded per lane for SDS-PAGE separation. The proteins were separated by 8% SDS-PAGE and transferred onto polyvinylidene difluoride membranes (GE Healthcare; Chicago, IL, USA). Membranes were blocked in 5% bovine serum albumin (VWR International, Radnor, PA, USA) at 4°C for 60 min. Subsequently, the membranes were immunoblotted overnight at 4°C with primary antibodies against ID1 (ab66495; 1:1,000; Abcam) or GAPDH (M20006; 1:2,000; Abmart, Inc., Berkeley Heights, NJ, USA). Membranes were then washed three times in Tris-buffered saline with 0.1% Tween 20 and subsequently incubated with a secondary antibody (Goat Anti-Mouse IgG H&L (HRP); ab205719; 1:2,000; Abcam) at room temperature for 60 min. Protein bands were visualized using CDP-Star reagent (Roche Diagnostics, Indianapolis, IN, USA). The signals were detected by exposure to X-Ray film for different times (1–10 min).
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2

UHRF1 Protein Domain Plasmid Construction

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The plasmids for pGEX4T-1-UHRF1 (aa 95–610) and pGEX4T-1-UHRF1 (aa 1–407) was as described52 (link). The pGEX4T-1-UHRF1 (aa 95–610)-YP191/192AA was derived from pGEX4T-1-UHRF1 (aa 95–610) by site-directed mutagenesis. Antibodies used in this study were as follows: anti-UHRF1 as described52 (link), anti-H3 (Abcam, #ab7766), anti-AcH3 (Abcam, #ab47915), anti-H3K27me3 (CST, #9733S), anti-H3K9me3 (Abclonal, #A2360), anti-GST (HuaAn, #EM80701) and anti-GAPDH (AbMart, #M20006).
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3

Immunohistochemical Analysis of Trait Genes

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HCC tissues were paraffin-embedded, sectioned, dewaxed and hydrated, incubated with anti-trait gene antibodies overnight at room temperature, then labeled with secondary antibodies for 30 min, stained and photographed.
The specific primary antibodies were purchased from the following resource:
GAPDH(Abmart, M20006, WB(1:5000)), CBX2(Abmart, PH3521, WB(1:1000), IHC(1:100)), CDKN2B(Affbiotech, AF0230, WB(1:1000), IHC(1:100)), ETS2(Abmart, MG225391, WB(1:1000), IHC(1:150)), HMGA1(ABclonal, A4343, WB(1:1000), IHC(1:100)), UBE2S(Abmart, PK66136, WB(1:1000), IHC(1:100)).
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4

Protein Expression Analysis of iPSC-Derived Cardiomyocytes

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The iPSC-CMs in a well of 6-well plate were detached with Trypsin–EDTA (Gibco, 25200056), and then pelleted at 300 g for 3–5 min at 4 °C. After washing with DPBS, the pellets were re-suspended in 50–100 μl lysis buffer. Lysates were placed on ice for 30 min and the supernatants were collected after centrifuging at 12,000 rpm for 5 min. Protein concentration was measured using a BCA kit (Pierce, 23227). Western blot was performed with the following antibodies: SERCA2a (Santa Cruz Biotechnology, sc-53010, 1:200, RRID: AB_630230), RYR2 (abcam, ab2868, 1:500, RRID: AB_2183051), sodium/calcium exchanger 1 (NCX1) (ProteinTech, 55075-1-AP, 1:500, RRID: AB_2881262), Cav 1.2 (ProteinTech, 21774-1-AP, 1:2000, RRID: 21774-1-AP), total phospholamban (PLN) (Cell Signaling Technology, 14562S, 1:1000, RRID: AB_2798511), phosphorylated PLN (Cell Signaling Technology, 8496S, 1:1000, RRID: AB_10949102), Nav1.5 (Alomone Labs, ASC-005, 1:500, RRID: AB_2040001), and GAPDH (Abmart, M20006, 1:5000, RRID: AB_2737054). Intensity values for each band were determined as the integrated density (sum of pixel values) within a fixed area using Quantity One software (Biorad).
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5

Western Blot Analysis of Iron Regulators

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Western blot analysis was performed as previously described [24 (link)]. Antibodies in this work were anti-KLF14 (ab85476; Abcam, Cambridge, MA, USA), anti-IRP1 (12406–1-AP, Proteintech, 1:1000), anti-IRP2 (23829–1-AP, Proteintech, 1:1000), anti-TfR1 (A5865, ABclonal, 1:1000), anti-Ferritin H (A19544, ABclonal, 1:1000), anti-SIRT1 (A17307, ABclonal, 1:1000), anti-GAPDH (M20006, Abmart, 1:5000), anti-Flag (M20008, Abmart, 1:5000, 1:1000), anti-HA (ab1424,abcam, 1:1000), anti-Actin (ab8227, abcam, 1:1000).
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