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6 protocols using anti gst sc 459

1

Chromatin Immunoprecipitation Assay Protocol

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ChIP assay was carried out as described previously [21] (link). Chromatin extracts were immunoprecipitated using 10 μg anti-KDM4C (A300-885 A; Bethyl Laboratories); 4 μg anti-trimethylated H3K9 (61,013; Active Motif), 4 μg anti-dimethylated H3K9 (39,683; Active Motif), and 2 μg anti-total H3 (39,763; Active Motif); Anti-GST (sc-459; Santa Cruz Biotechnology) antibodies were used as mock ChIP controls. Fold enrichments were calculated by determining the ratios of the amount of immunoprecipitated DNA to that of the input sample and were normalized to the level observed at a control region, which was defined as 1.0. The ChIP primers are available on request (Supplemental Table Primers).
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2

Immunoblotting for Autophagy and Signaling

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Anti-LC3B (ab51520), anti-S6K1 (ab32359), anti-phospho-T389 S6K1 (ab2571) and horseradish peroxidase (HRP) -labelled anti-horse IgG secondary antibodies (ab6802) were purchased from Abcam. Anti-GST (sc-459) was purchased from Santa Cruz Biotechnology. Anti-p62 (CST 5114), anti-glyceraldehyde-3-phosphate dehydrogenase (GAPDH) (CST 2118), anti-phospho-S65 4E-BP1 (CST 9451), anti-phospho-S757 ULK1 (CST 6888), anti-phospho-S473 Akt (CST 4058), anti-phospho-T172 AMPKα (CST 2531) and HRP-labelled anti-rabbit IgG secondary antibodies (CST 7074) were purchased from Cell Signaling Technology. His-tagged LRS and GST-tagged RagD were in laboratory stocks. mCherry-GFP-LC3 plasmid (pBabe vector) was from Dr Heesun Cheong, Division of Chemical Biology, Research Institute, National Cancer Center, Korea.
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3

Histone Peptide Binding Assay for ENL, GAS41, and AF9

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The biotinylated histone peptides used in the AlphaScreen assay: H3 (aa 1–22, ARTKQTARKSTGGKAPRKQLAT), H3K9ac (aa 1–22, ARTKQTARK(ac)STGGKAPR-KQLAT), H3 (aa 21–44, ATKAARKSAPATGGVKKPHRYRPG), H3K27ac (aa 21–44, ATKAARK(ac)SAPSTGGVKKPHRYRPG), H3K27cr (aa 21–44, ATKAARK(cro)SAPS-TGGVKKPHRYRPG) and the biotin-14xHis peptide used in counter assay were purchased from CPC Scientific. Anti-ENL (14893S) antibody was from Cell Signaling, anti-GAS41 (sc-393708) and anti-GST (sc-459) antibodies were from Santa Cruz, and anti-AF9 (HPA001824) and anti-β-actin (A1978) antibody was from Sigma. Human cell lines MV4;11, MOLM13, U2OS and HeLa cells were purchased from ATCC.
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4

GST-HDAC4c Interaction with SRD3c

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GST-tagged HDAC4c was coexpressed with Gal4N-fused SRD3c wild-type or mutants in HEK293 cells. After 48 h, the whole cell lysates (500 μg) were prepared in RIPA buffer [50 mM Tris-HCl (pH 8.0), 5 mM EDTA, 150 mM NaCl, 1% NP-40, 1 mM PMSF] and mixed with 30 μl (50% slurry) of glutathione-agarose beads (Sigma-Aldrich). After overnight incubation at 4°C, the beads were washed three times with the same buffer. The bound proteins were eluted from the precipitates using 2× SDS sample buffer and resolved by 10% SDS-PAGE. The presence of Gal4N-SRD3c proteins and GST- HDAC4c was analyzed by immunoblotting using anti-GBD (sc-510; Santa Cruz Biotechnology, Dallas, TX, USA) and anti-GST (sc-459; Santa Cruz Biotechnology) antibodies, respectively.
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5

Antibody panel for protein detection

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The antibodies used in this study included anti-HA (#3724, Cell Signaling), anti-V5 (#13202, Cell Signaling; T0057, Affinity Biosciences), anti-Flag M2 (F3165; Sigma), anti-OTUB1 (GTX57636, GeneTex), anti-lamin-B1 (GTX103292, GeneTex), anti-α-tubulin (Clone DM1A, T9026; Sigma), anti-ubiquitin (Ub) (A11227, Abclonal), anti-PB2 (GTX125926, GeneTex), anti-NP (GTX125989, GeneTex), anti-M1 (GTX125928, GeneTex), anti-NS1 (GTX125990, GeneTex), anti-NA (GTX125974, GeneTex), anti-NS2 (GTX125953, GeneTex), anti-GST (sc-459, Santa Cruz Biotechnology), and anti-His (05-949, Millipore) antibodies.
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6

Recombinant EGFR Protein Expression

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E. coli strain BL21 CodonPlus (Stratagene) was used for GST-fusion protein expression and JM109 competent bacteria (Promega) were used for plasmid construction and maintenance. The vector pLXSN, containing the full-length human EGFR, was a gift from Professor Axel Ullrich (Max Planck Institute, Martinsried, Germany). E. coli expression vector pGEX-6P-1 was purchased from Amersham Pharmacia Biotech. Anti-EGFR (sc-03) and anti-GST (sc-459) antibodies were obtained from Santa-Cruz Biotechnology. The horseradish peroxidase conjugated anti-rabbit and anti-mouse IgG antibodies were purchased from Promega.
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