Understanding the Role of Protein A in Antibody Purification
In the rapidly evolving field of biotechnology, Protein A Antibody Purification plays a pivotal role in isolating monoclonal antibodies (mAbs), which are essential in both therapeutic treatments and research applications. As demand for high-quality antibodies continues to rise, the efficiency of purification methods becomes increasingly important. Among various purification techniques, Protein A chromatography is the gold standard for antibody purification, particularly for immunoglobulin G (IgG). This article explores how Protein A functions in the antibody purification process and why it remains so vital to the biopharmaceutical industry. What is Protein A? Protein A is a bacterial protein originally derived from Staphylococcus aureus . It has a high affinity for the Fc region of immunoglobulins, particularly IgG antibodies, making it a key tool for antibody purification. Due to its strong and specific binding ability, Protein A is immobilized onto chromatography resins and used