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Micro Bicinchoninic Acid (BCA) protein assay

Dodavatel: G-Biosciences
GENO786-895EA 15630 CZK
GENO786-895 786-572
Micro Bicinchoninic Acid (BCA) protein assay
Test Testy proteinové
The Micro Bicinchoninic Acid Protein Assay is a highly sensitive colorimetric assay that is compatible with detergent solubilised protein solutions. This modification of the Bicinchoninic Acid (BCA) Protein Assay is suitable for dilute protein samples (0,5 to 20 µg/ml).

The Micro Bicinchoninic Acid 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 Micro BCA Protein Assay is suitable for quantifying protein solutions in 500×1 ml assays or in >3300 microwell assays.
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