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5 protocols using anti tip60

1

Immunostaining of Drosophila Brains

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Adult Drosophila brains were dissected in PBS, fixed in 4% paraformaldehyde in PBS, washed three times in PBS containing 0.1% Triton X-100, blocked for 1 hr at room temperature (RT) in PBT containing 5% normal goat serum, and incubated with primary antibodies in blocking solution overnight at 4°C. Anti-Tip60 (1:400) was obtained from Abcam, anti-Fasciclin (mAb1D4; 1:10) was obtained from the Developmental Studies Hybridoma Bank (University of Iowa). Anti-GFP (1:100) was obtained from Millipore. Samples were washed three times in PBST at RT, and secondary antibodies (Jackson Immunoresearch) were applied in blocking solution for 2 hr at RT. After washing three times in PBS, samples were mounted in Vectashield (Vector Laboratories).
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2

SIRT1-7, TIP60, and GPAT3 Interaction Analysis

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The open reading frame of human SIRT1‐7, TIP60, and GPAT3 (Miaolingbio) were subcloned into pcDNA3.1‐3×flag or pcDNA3.1‐HA vectors. Transfected cells were lysed with NP‐40 lysis buffer (Biosharp, Anhui, China). Anti‐AcGPAT3 were custom‐made from GL (GL Biochem, Shanghai, China) and applied for IP and Co‐IP assays. The immune precipitants eluted from SureBeads™ Protein A&G Magnetic Beads (Bio‐Rad Inc., Hercules, CA, USA) were examined by immunoblotting as described.
32 (link) Anti‐rabbit and mouse IgG (Beyotime) were used as negative controls. Anti‐TIP60, anti‐SIRT3, anti‐GPAT3, anti‐Flag, and anti‐HA (1:1000) were obtained from Abcam (Cambridge, MA, USA).
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3

Assaying HAT and HDAC Activities

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HNPCs nuclear extracts were prepared as described previously [26 (link)]. HAT activity and HDAC activity assays were done using nuclear extracts following the protocols of the manufacturer (BioVision Biotechnology). For HAT activity assays, immunoprecipitations were done using anti-p300, anti-Tip60, anti-CBP, and anti-PCAF (Abcam, Cambridge, UK) with hNPCs nuclear extracts. Precleared nuclear extract was incubated with antibodies overnight with Protein G dynabeads (Thermo, Waltham, Massachusetts, USA) at 4°C. All samples were counted with a multipurpose scintillation counter, LS 6500 (Beckman, California, USA).
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4

Regulation of β-Catenin Acetylation

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SR3029, D4476, MG149, NU9056, MG132 and cycloheximide (CHX) were purchased from MedChemExpress (MCE, Monmouth Junction, NJ, USA). The following primary antibodies were used: anti-CK1δ, anti-β-catenin, anti-p300, anti-acetyl-lysine, IgG (Santa Cruz Biotechnology, Heidelberg, Germany), anti-CBP, anti-acetyl-β-catenin (K49), anti-phospho-β-catenin (S45), anti-Flag, anti-V5, anti-CK1ϵ, anti-GFP, anti-mouse IgG (Cell Signaling Technology, Danvers, MA), anti-Tip60 (Abcam, Cambridge, MA, USA), and anti-GAPDH antibody (Proteintech, Chicago, IL, USA). The Tip60-Flag, PCAF-Flag, p300-Flag and pEGFP-N1 plasmids were purchased from Vigenebio (Weizhen, Shandong, China). The SuperTopFlash reporter plasmid was provided by Karl Willert (University of California at San Diego, La Jolla, CA, USA). The expression plasmids encoding β-catenin, pCMXβgal (β galactosidase, β-gal), CK1α-V5, CK1δ-V5, CK1ϵ-V5, CK1α-Flag, CK1δ-Flag, CK1ϵ-Flag, CK1γ-Flag have been described previously (35 (link), 36 (link)). For the construction of GFP-tagged CK1δ, the cDNAs encoding human CK1δ was amplified by PCR and subcloned into the BamHI/EcoRI site of pEGFP-N1 vector using ClonExpress Ultra One Step Cloning Kit (Vazyme, Nanjing, China). The primer sequences used are as follows: CK1δ-GFP-sense, 5’-CTCGAGCTCAAGCTTCATGGAGCTGAGAGTCGGGAAC-3’; CK1δ-GFP-antisense, 5’-CTCACCATAAGGTGGCGACCGGTGTAGGTGCGTCGTG.
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5

Western Blot Analysis of Protein Samples

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For Western blot analysis, cells were lysed in RIPA buffer containing protease-inhibitor mixture (Roche) and the Bradford method (Bio-rad) was applied to measure protein concentration. Cell lyses were boiled in 2×SDS loading buffer for 5 min and prepared for gel running. Antibodies used in Western blots were, anti-p53, anti-TUBULIN, anti-Myc, anti-GAPDH (Santa Cruz); anti-K120Ac-p53, anti-TIP60 (Abcam); anti-HA (Milipore); anti-cleaved-PARP, anti-TRRAP, anti-p400, anti-DMAP1 and anti-RUVBL1 (Cell Signaling) antibodies.
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