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3 protocols using anti h2ak119ub d27c4

1

Skin Tissue Preparation for Immunofluorescence

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Back skin was harvested at the described time points, fixed with 4% paraformaldehyde (PFA) for 3 hours at 4°C, and cryopreserved in 30% sucrose overnight, followed by O.C.T. embedding (Tissue-TEK 4583). Embedded tissues were cut at 7 μm in thickness. Sections were washed in tris-buffered saline–0.1% Tween 20 (TBS-T) and blocked with 5% donkey serum at room temperature for 1 hour. Section were incubated with anti-H2AK119Ub (D27C4, Cell Signaling Technology) overnight at 4°C, washed in TBS-T, incubated for 1 hour at room temperature with secondary antibody [715-165-147, Cy3 AffiniPure Donkey Anti-Rabbit IgG (H+L), Jackson ImmunoResearch] and 4′,6-diamidino-2-phenylindole dihydrochloride (32670, Sigma-Aldrich), and mounted with Mowiol 4-88 (81381, Sigma-Aldrich). Images were taken with Leica Sp8 confocal microscope.
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2

ChIP Analysis Protocol for Epigenetic Markers

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ChIP analysis was essentially performed as described previously (Frank et al., 2001 (link)). ChIP reactions were performed using the following antibodies: anti-GFP (ab290, Abcam), anti-CBX8 (C15410333, Diagenode), anti-EZH2 (D2C9, Cell Signaling), anti-H2AK119ub (D27C4, Cell Signaling), anti-H3K27me3 (C15410195, Diagenode), anti-H3K27Ac (C15410196, Diagenode), anti-H3K4me1 (C15410194, Diagenode), and anti-H3K4me3 (C15410003, Diagenode). ChIP efficiencies were assessed using qPCR. Primer sequences can be found in Supplementary file 6.
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3

Comprehensive Western Blot Analysis

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Western blotting was performed as previously described (van den Boom et al., 2013 (link)). The following primary antibodies were used in this study: anti-KDM2B (09-864, Merck), anti-USP7 (A300-033A, Bethyl Laboratories), anti-TRIM27 (18791, IBL), anti-RING1A (ab180170, Abcam), anti-RING1B (ab181140, Abcam), anti-PCGF1 (ab183499, Abcam), anti-STAT5 (sc-835-G, Santa Cruz Biotechnology), anti-TP53 (sc-216, Santa Cruz Biotechnology), anti-MDM2 (sc-813, Santa Cruz Biotechnology), anti-GFP (sc-9996, Santa Cruz Biotechnology), anti-GFP (ab290, Abcam), anti-Ubiquitin (FK2, Enzo Life Sciences), anti-H2AK119ub (D27C4, Cell Signaling), and anti-b-Actin (C4, Santa Cruz Biotechnology). Secondary antibodies used included either goat anti-mouse IRDye 800 or goat anti-rabbit IgG (H+L) Alexa Fluor 680 (Invitrogen) for imaging using an Odyssey CLx Imaging System (Li-Cor Biosciences), or goat anti-rabbit immunoglobulins/HRP (Agilent-Dako), and rabbit anti-mouse immunoglobulins/HRP (Agilent-Dako) for imaging using a ChemiDoc XRS+ System (Biorad).
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