DNA methylation profiling Gene specific profiling Mouse muscle stem cells

Get tips on using INTRAY® COLOREX™ VRE - PREPARED PLATED CULTURE MEDIA FOR VANCOMYCIN RESISTANT ENTEROCOCCI to perform Bacterial cell culture media Enterococcus faecium

Get tips on using INTRAY® COLOREX™ VRE - PREPARED PLATED CULTURE MEDIA FOR VANCOMYCIN RESISTANT ENTEROCOCCI to perform Bacterial cell culture media Enterococcus faecalis

Get tips on using LC3A/B (D3U4C) XP® Rabbit mAb (Alexa Fluor® 488 Conjugate) #13082 to perform Autophagy assay cell type - RAW 264.7

Get tips on using Click-iT™ Plus EdU Alexa Fluor™ 488 Flow Cytometry Assay Kit to perform Cell cycle assay human - OVCAR-5

Get tips on using APO-BrdU™ TUNEL Assay Kit, with Alexa Fluor™ 488 Anti-BrdU to perform Apoptosis assay cell type - PANC-1

Get tips on using ViralSEQ™ Quantitative Sf-Rhabdovirus Kit with PrepSEQ™ Nucleic Acid Sample Prep Kit to perform Cell Culture Contamination Detection Kit Virus

Get tips on using OxiSelect™ In Vitro ROS/RNS Assay Kit (Green Fluorescence) to perform ROS assay cell type - PLHC-1, SK-HEP-1, Hep3b, HepG2 human hepatocellular carcinoma

Get tips on using APO-BrdU™ TUNEL Assay Kit, with Alexa Fluor™ 488 Anti-BrdU to perform TUNEL assay cell type - SK-MEL-2 human melanoma

Get tips on using APO-BrdU™ TUNEL Assay Kit, with Alexa Fluor™ 488 Anti-BrdU to perform TUNEL assay cell type - A549, NCI-H460, H1299 human alveolar carcinoma

The most widely used method for protein quantification is by spectrophotometry. The concentration of the protein in the samples is measured at an absorbance of 280 nm. The absorbance of the sample protein is then plotted against a standard curve. This method allows for total protein quantification in a sample (cell and tissue extracts). Before analysing the concentration of protein in the sample, it is important to choose the right test method.  For high protein concentration samples (above 5 - 160 mg/ml) the best method is to use the Biuret test. For low concentrations samples (between 1 - 2000µg/ml) the best methods are Lowry assay, BCA assay, Bradford assay and coomassie blue (for exact sensitivity of the test kits you use, refer to manufacturer's protocol). If the samples contain detergents like Triton X-100 then BCA assay is the best choice. For samples that have proteins larger than 3 KDa in size Bradford assay is the best choice. Each method has advantages and disadvantages, plan your analysis considering your sample characteristics.