To detect EGFR dimerization, PANC-1 cells were starved in serum-free medium for 24 h, washed with PBS, and then cold PBS containing 10 ng/mL recombinant human EGF (SinoBiological, Beijing, China) or 1 μg/mL recombinant human REG3A (rhREG3A, SinoBiological) was added to the plates, which were then incubated for 30 min at 4 °C. The cells were again washed with cold PBS and then incubated with 0.5 mM bis(sulfosuccinimidyl)suberate cross-linker (BS3, Thermo Fisher Scientific) in PBS for 2 h at 4 °C on ice. After washing again, the cross-linking reaction was stopped by incubating in 50 mM Tris buffer (pH 7.5) for 15 min. The cells were then lysed, and the dimerization of EGFR was analyzed by western blotting.
Protease and phosphatase inhibitor
Protease and phosphatase inhibitors are laboratory reagents used to prevent the degradation of proteins and phosphorylated molecules during sample preparation and analysis. They inhibit the activity of enzymes that break down these biomolecules, helping to maintain their integrity and structure for further experimentation and study.
Market Availability & Pricing
Thermo Fisher Scientific's protease and phosphatase inhibitors are actively commercialized and available through authorized distributors. For example, the Halt™ Protease and Phosphatase Inhibitor Cocktail (100X) is listed on the manufacturer's website. Prices for these products vary depending on the specific formulation and quantity.
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1 915 protocols using «protease and phosphatase inhibitor»
Western Blotting and EGFR Dimerization Analysis
To detect EGFR dimerization, PANC-1 cells were starved in serum-free medium for 24 h, washed with PBS, and then cold PBS containing 10 ng/mL recombinant human EGF (SinoBiological, Beijing, China) or 1 μg/mL recombinant human REG3A (rhREG3A, SinoBiological) was added to the plates, which were then incubated for 30 min at 4 °C. The cells were again washed with cold PBS and then incubated with 0.5 mM bis(sulfosuccinimidyl)suberate cross-linker (BS3, Thermo Fisher Scientific) in PBS for 2 h at 4 °C on ice. After washing again, the cross-linking reaction was stopped by incubating in 50 mM Tris buffer (pH 7.5) for 15 min. The cells were then lysed, and the dimerization of EGFR was analyzed by western blotting.
Quantifying Cytoskeletal Protein Regulation
Quantifying CD44 and MMP2 Protein Expression
Western Blot Analysis of XRN1 and PKR
Western Blot Analysis of Cell Signaling Proteins
Top 5 most cited protocols using «protease and phosphatase inhibitor»
Tissue and Serum Protein Profiling
Corresponding organizations : Uniformed Services University of the Health Sciences, Walter Reed Army Institute of Research
Protein quantification and western blotting
Corresponding organizations : Iowa State University, Oregon State University
Comprehensive Proteomic Analysis of Tissue Samples
Corresponding organizations : Peking University Cancer Hospital, Peking University, Beijing Proteome Research Center, Baylor College of Medicine, Chinese People's Liberation Army, Academy of Military Medical Sciences, East China Normal University, Fudan University, Zhongshan Hospital
Reverse Phase Protein Microarray Analysis
Tissue samples were diluted in print buffer and then subjected to an 11-point serial 1:2 dilution and transferred into Genetix 384-well plates (X7022, Fisher Scientific, Pittsburg, PA, USA) using a JANUS Varispan Integrator and Expanded Platform Workstation (PerkinElmer, Waltham, MA, USA). Plates were transferred into an Aushon 2470 Arrayer (Aushon Biosystem, Billerica, MA, USA) to be printed on ONCYTE Avid (brain samples) or ONCYTE Nova (serum samples) single-pad nitrocellulose coated glass slides (Grace Bio-Labs, Bend, OR, USA; Gyorgy et al., 2010 (link)).
Primary antibodies (Table
Data from the scanned images were imported into a Microsoft Excel-based bioinformatics program developed in-house for analysis (Gyorgy et al., 2010 (link)). The linear regression of the log–log data was calculated after the removal of flagged data, which include signal to noise ratios of less than 2, spot intensities in the saturation range or noise range, or high variability between duplicate spots (>10–15%). The total amount of antigen is determined by the y-axis intercept (Y-cept; Gyorgy et al., 2010 (link)). Data is reported as the mean Y-cept ±SEM.
Corresponding organizations : United States Department of Veterans Affairs, Uniformed Services University of the Health Sciences, Center for Neuroscience and Regenerative Medicine
Cell Signaling Pathway Assays for Receptor Activation
Corresponding organizations : National Institute of Dental and Craniofacial Research, National Institutes of Health, University of California, San Francisco, University of Calabria, University of California, San Diego, Sichuan University, Tohoku University, Japan Agency for Medical Research and Development, Japan Science and Technology Agency
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