Capturem Protein G columns and plates combine the specific antibody binding properties of Protein G with Capturem technology to provide rapid, high-quality purification and screening of monoclonal and polyclonal antibodies. Where resin columns fall short, Capturem Protein G yields highly pure monoclonal and polyclonal antibodies in just 5–15 minutes, from loading the sample through elution. Short residence times greatly reduce the possibility of antibody aggregation or loss of activity, giving downstream applications a higher probability of success.

Protein G is a cell wall protein from the bacterium Staphylococcus aureus with a high affinity for the Fc region of monoclonal and polyclonal IgG-type antibodies from several different species, e.g., mouse, rat, human, etc. This product uses a recombinant Protein G that was engineered to remove the albumin-binding domain, as well as the cell wall and cell membrane binding domains, in order to improve specificity towards the Fc region of antibodies. Capturem kits use a novel high-capacity membrane-based affinity technology that has previously been used to purify highly concentrated his-tagged proteins in just minutes at room temperature, via miniprep columns, maxiprep columns, 24-well plates, and 96-well plates.