Bicinchoninic acid (BCA) protein assay

Supplier: G-Biosciences
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786-570EA 573 GBP
786-570 786-571 GENO786-890 GENO786-891
Bicinchoninic acid (BCA) protein assay
Assays Protein Assays
The Bicinchoninic Acid (BCA) Protein Assay is a highly sensitive colorimetric assay that is compatible with detergent solubilised protein solutions.

The Bicinchoninic Acid (BCA) Protein Assay primarily relies on two reactions. Firstly, the peptide bonds in the protein sample reduce Cu²⁺ ions, in a temperature dependent reaction, from the copper solution to Cu⁺. The amount of Cu²⁺ reduced is proportional to the amount of protein present in the solution. Next, two molecules of bicinchoninic acid (BCA) chelate with each Cu⁺ ion, forming a purple-coloured product that strongly absorbs light at a wavelength of 562 nm that is linear for increasing protein concentrations between the range of 0,02 to 2 mg/ml. The amount of protein present in a solution can be quantified by measuring the absorption spectra and comparing with protein solutions with known concentrations.

The Bicinchoninic Acid (BCA) Protein Assay is suitable for quantifying protein solutions in 1 ml cuvettes or in microwells.
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