Cell cytotoxicity / Proliferation assay cell type

Get tips on using Gibco™Ham's F-12K (Kaighn's) Medium to perform Stem cell culture media Human myogenic progenitor cells

Get tips on using X-tremeGENE™ HP DNA Transfection Reagent to perform DNA transfection Mammalian cells - Immortalized cell lines HeLa

Get tips on using X-tremeGENE™ HP DNA Transfection Reagent to perform DNA transfection Mammalian cells - Immortalized cell lines Neuro2a

Get tips on using X-tremeGENE™ HP DNA Transfection Reagent to perform DNA transfection Mammalian cells - Immortalized cell lines L02

Get tips on using GenJet™ In Vitro DNA Transfection Reagent to perform DNA transfection Mammalian cells - Immortalized cell lines COS7

Get tips on using X-tremeGENE™ HP DNA Transfection Reagent to perform DNA transfection Mammalian cells - Immortalized cell lines H9C2

Get tips on using X-tremeGENE™ HP DNA Transfection Reagent to perform DNA transfection Mammalian cells - Immortalized cell lines Huh7

Get tips on using X-tremeGENE™ HP DNA Transfection Reagent to perform DNA transfection Mammalian cells - Immortalized cell lines HepG2

Get tips on using Gibco™ DMEM, high glucose, GlutaMAX™ Supplement to perform Stem cell culture media Mouse myoblasts cells

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.