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6 protocols using myogenin sc 12732

1

Protein Expression Analysis in Myoblasts

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Cells were lysed in IPH buffer (50 mM Tris-Cl, 0.5% NP-40%, 50 mM EDTA). Samples were run on a 10% polyacrylamide SDS-PAGE gel and transferred to nitrocellulose membranes. Membranes were blocked for 30 min in 5% milk containing PBST and incubated overnight with primary antibody in 1% milk. After washing, secondary antibody incubation was carried out for 1 h at 1:4000 dilution before washing and incubation with Millipore Immobilon HRP substrate. Antibodies used were as follows: MYOD1 sc-32758 (Santa Cruz Biotechnology), MHC 22287–1-AP (Proteintech), MYOGENIN sc-12732 (Santa Cruz Biotechnology), and HSP90 sc-13119 (Santa Cruz Biotechnology).
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2

Western Blot Analysis of Protein Expression

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Cells were lysed with radioimmunoprecipitation assay buffer (RIPA Bufer, Thermo Scientific) containing protease inhibitors (Complete, Mini; Protease Inhibitor Cocktail Tablets, Roche) and phosphatase inhibitors (PhoStop, Phospatase Inhibitor Cocktail Tablets, Roche) and centrifuged at 13000×g, at 4ºC, for 20 minutes. The protein content of the supernatants was determined with BCA assay system (Pierce). Lysate aliquots (50 μg) were resolved by 8%, 10% or 12% (depending on the protein molecular weight) SDS-PAGE and transferred onto nitrocellulose membranes. After blocking with 5% skimmed milk in PBS containing 0.2% Tween 20 at room temperature for 1 hour, membranes were incubated overnight at 4ºC with the appropriate primary antibody (CAV1 #610059 from BD, FoxO1 #2880, ERK1/2 #4695, phospho-ERK1/2 #4376 from Cell Signaling Technology; CAV3 #sc5310 and Myogenin #sc-12732 from Santa Cruz; MyHC MF 20 from Developmental Studies Hybridoma Bank). Blots were then incubated at room temperature for 1 hour with a horseradish peroxidase–conjugated secondary antibody and the peroxidase activity was detected by enhanced chemiluminescence (Pierce) following the instructions of the manufacturer. Immunodetection of β-actin (#ab49900) from Abcam was used as a loading reference.
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3

Protein Extraction and Western Blot Analysis

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Cells were lysed in radioimmunoprecipitation assay (RIPA) buffer (50 mM Tris-HCl [pH 7.4], 150 mM NaCl, 1% Triton X-100, 1 mM ethylenediaminetetraacetic acid, 1 mM ethylene glycol tetraacetic acid, 0.1% sodium dodecyl sulfate [SDS], 1% sodium deoxycholate, 1 mM Na3VO4, 1 mM sodium fluoride, 1 mM phenylmethylsulfonyl fluoride, and protease inhibitor cocktail). After a 30-minute incubation on ice, the lysates were centrifuged at 14,000 rpm for 20 minutes at 4°C. The protein concentration was measured with a bicinchoninic Acid (BCA) protein assay kit (Pierce Chemical Co., Rockford, IL, USA). Protein samples were separated by SDS-polyacrylamide gel electrophoresis (PAGE), transferred to a polyvinylidene fluoride membrane, and immunoblotted with antibodies [25 (link)]. The primary antibodies were: MyHC (MF20); myogenin (sc-12732) and CCR5 (sc-178933) (Santa Cruz Biotechnology, Dallas, TX, USA); and β-tubulin (T2200; Sigma-Aldrich).
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4

Rabbit Polyclonal Antibodies for SLK

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Our rabbit custom polyclonal antibodies for SLK was used throughout this study, as previously described [35 (link)]. GAPDH (#5174), P-Y397-FAK (#3283), P-Y118-Paxillin (#2541), P-p38 (#4511), p38 (#9212), P-S9-GSK3β (#9336), GSK3β (#9315), P-SAPK/JNK (#4668), and SAPK/JNK(#9252), were acquired from cell signaling. MHC type 1/slow (M8421), MHC type 2/fast (M4276), γ tubulin (T5192) and Vinculin (V9131) were purchased from Sigma-Aldrich. Antibodies for dystrophin (ab15277) and laminin (ab11575) from Abcam were used for staining. The Myf5 (sc-302) and Myogenin (sc-12732) antibodies were purchased from Santa Cruz. Antibodies for periostin (AF2955) and Pax7 (MAB1675) were from R&D Systems. Finally, total FAK (610088) and total paxillin (612405) were acquired from BD Biosciences.
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5

Protein Expression Analysis in Myoblasts

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Cells were lysed in IPH buffer (50 mM Tris-Cl, 0.5% NP-40%, 50 mM EDTA). Samples were run on a 10% polyacrylamide SDS-PAGE gel and transferred to nitrocellulose membranes. Membranes were blocked for 30 min in 5% milk containing PBST and incubated overnight with primary antibody in 1% milk. After washing, secondary antibody incubation was carried out for 1 h at 1:4000 dilution before washing and incubation with Millipore Immobilon HRP substrate. Antibodies used were as follows: MYOD1 sc-32758 (Santa Cruz Biotechnology), MHC 22287–1-AP (Proteintech), MYOGENIN sc-12732 (Santa Cruz Biotechnology), and HSP90 sc-13119 (Santa Cruz Biotechnology).
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6

Western Blot Analysis of Myogenic Markers

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Cells were lysed in IPH buffer (50 mM Tris-Cl, 0.5% NP-40%, 50 mM EDTA). Samples were run on a 10% polyacrylamide SDS-PAGE gel and transferred to nitrocellulose membranes. Membranes were blocked for 30 min in 5% milk containing PBST and incubated overnight with primary antibody in 1% milk. After washing, secondary antibody incubation was carried out for 1 h at 1:4000 dilution before washing and incubation with Millipore Immonilon HRP substrate. Antibodies used were as follows: MYOD1 sc-32758 (Santa Cruz Biotechnology), MHC 22287-1-AP (Proteintech), MYOGENIN sc-12732 (Santa Cruz Biotechnology), and HSP90 sc-13119 (Santa Cruz Biotechnology).
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