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5 protocols using anti igg mouse

1

Immunoprecipitation of Protein Complexes

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Harvested cells were lysed for 40 min on ice in IP lysis buffer (0.75% CHAPS, 10% (vol/vol) glycerol, 150 mM NaCl, 50mM Tris pH 7.5) freshly supplemented with protease inhibitors. Supernatants were diluted to adjust the CHAPS concentration to 0.375%. Whole cell lysates (3 to 5 mg total protein) were incubated with anti-IgG rabbit (Millipore, N101), anti-IgG mouse (Millipore, N103), anti-DNA-PKcs (Thermo Fisher, PIMA513244 or Invitrogen, MA5-132238), anti-SIRT2 (Abcam, ab67299) or anti-GFP antibody (Abcam; Ab6556). Protein G beads, A agarose beads (Invitrogen), or FLAG conjugated beads (Sigma A2095) were used to immunoprecipitate antibody bound protein. Complexes were washed 4 times with IP washing buffer (0.375% CHAPS, 10% glycerol, 150 mM NaCl, 50 mM Tris pH 7.5) supplemented with protease inhibitors.
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2

ChIP Antibodies for dCTCF and Histone Modifications

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The following antibodies were used for ChIP: dCTCF polyclonal antibodies were generated by New England Peptide by immunizing rabbits with a peptide corresponding to the first 20 aminoacids of dCTCF53 (link). The following antibodies were obtained from commercial sources: anti-H3K4me3 (Abcam #8580), anti-H3K27ac (Abcam #4729), anti-H3K27me3 (Abcam #6002), anti-RNA Pol II pSer2 (Abcam #5095), anti-RNA Pol II pSer5 (Abcam #5408), anti-IgG mouse (Millipore #12-371), and anti-IgG Rabbit (Millipore #12-370).
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3

Protein Extraction and Western Blot Analysis

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Proteins from mouse abdominal aorta and mAECs were extracted with cold lysis buffer (50 mM Tris•Cl, pH 7.2, 1% (w/v) Triton X-100, 0.1% (w/v) SDS, 500 mM NaCl and 10 mM MgCl2) supplemented with protease and phosphatase inhibitors (Roche). Polyacrylamide gel-electrophoresis and western blot were performed as described [22] . The following primary antibodies were used at the indicated dilutions: anti--actin 1/2000 (sc-47778), anti ERK-2 1/1000 (sc-1647), anti-iNOS 1/1000 (sc-650), and anti-eNOS 1/1500 (sc-654) from Santa Cruz Biotechnology; anti-COX-1 1/1000 (160109) and anti-COX-2 1/1000 (160112) from Cayman Chemical. Secondary HRP-conjugated antibodies were from Santa Cruz Biotechnologies: anti-IgG-rabbit 1/5000 (sc-2004) and anti-IgG-mouse 1/5000 (sc-2005).
Immunocomplexes were detected by incubation with Luminata Forte Western HRP substrate (Millipore).
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4

Investigating miR-506 Regulation by RIP

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miR-506 mimics or miRNA was transfected into HCCC-9810 and CCLP1 cells. And the cells were lysed and collected in a RIP lysis buffer kit (Millipore, USA). Human anti-Ago2 (Millipore, USA) or mouse anti-IgG (Millipore, USA) were then conjugated with RNAs magnetic beads. Then the expression levels of purified RNA were determined by qRT-PCR.
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5

Luciferase Assay and RNA Immunoprecipitation for miR-506 Interactions

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The sequences containing the wild-type (WT) or mutated (MUT) region DDX5 and linc00473 were synthesized by GenePharma (Shanghai, China) and inserted into a pmirGLO-Report luciferase vector. For the luciferase reporter assay, miR-506 mimics and the respective reporter plasmids were transfected into cells using Lipofectamine 3000 according to the manufacturer's protocol. After 24 hours, the Renilla and Fire y luciferase activities were determined using the Dual-Luciferase Reporter Assay System (Promega) according to the manufacturer's instructions.
RNA-binding protein immunoprecipitation (RIP) assay miR-506 mimics or miRNA was transfected into HCCC-9810 and CCLP1 cells. And the cells were lysed and collected in a RIP lysis buffer kit (Millipore, USA). Human anti-Ago2 (Millipore, USA) or mouse anti-IgG (Millipore, USA) were then conjugated with RNAs magnetic beads. Then the expression levels of puri ed RNA were determined by qRT-PCR.
The immunohistochemistry (IHC) assay IHC analysis was performed as previously described [16] . For this staining, after heat-induced epitope retrieval, para n-embedded sections were incubated with 3% H
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