Chromatography on Affi-Gel and Affi-Prep protein A resins yields highly purified immunoglobulins (IgG), selectively removes IgG prior to analysis of other immunoglobulin classes, or adsorbs immune complexes for antigen purification. Protein A binds to the Fc region of immunoglobulins, especially IgG from mammalian species.
- High purity of IgGs
- High affinity for mammalian IgG
- High capacities for mouse IgG1 as well as other subclasses with MAPS optimized buffer
In addition, Affi-Prep resins offer high linear flow rates up to 2,000 cm/hr, pressure stability up to 1,000 psi (70 bar), and high chemical stability, which allows sanitization with 0.1 M NaOH.
With Affi-Gel and Affi-Prep protein A resins and MAPS II buffers, you can purify up to 10 mg of IgG1/ml of gel. This is 8–10 times higher than with standard methods. In addition, the MAPS process and Affi-Gel protein A permit greater binding of mouse IgG1 than do immobilized protein G resin.
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