Pierce Protein Assay

Pierce Protein Assay is a method of quantification of protein. It provides quick estimation of protein amount in sample.[1]

Protocol

The assay is separated into three main parts:

  1. Prepare the Diluted Albumin (BSA) Standards.
  2. Prepare the bicinchoninic acid (BCA) working reagent (WR).
  3. Quantification of proteins (depending on selected procedure either test-tube procedure or microplate procedure)

Advantages of Pierce Method

  1. Able to detect as low as 25 ug/ml and up to 2000 ug/ml proteins in 65 ul sample in standard protocol.
  2. A preferred methods for samples containing detergents or other reducing agents.
  3. Fast detection in comparison to the BCA or Coomassie (Bradford) Assays.
  4. A better approach compared to Coomassie (Bradford) Assay due to low protein-to-protein variability.
  5. Have stable end point.

Disadvantages of Pierce Method

  1. Protein-to-protein have greater variability than the BCA Assay.

References

  1. "Protein Assay Handbook" (PDF). Life technologies. Retrieved 9 April 2015.
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