Protein A has high affinity regions that are specifically bonded to the Fc region of the immunoglobulins (especially IgGs of different species). Protein A agarose beads have been widely used to purify a wide range of immunoglobulins of different mammalian species and also to purify certain IgG subclasses that have no affinity. It is suitable for immunoprecipitation (IP) procedures.
Protein A PLUS Agarose resin consists of Recombinant Protein A      (≥ 5 mg Protein A / ml resin) covalently bound to cross-linked activated agarose beads. It provides a very stable bond that can greatly minimize leakage of the protein A allowing for reuse of the affinity resin in several purification steps. The resin works well in batch or column purification.

This product is supplied as a suspension of Protein A Agarose Resin in 20% ethanol. The settled bead volume is as per each product pack.

The product should never be Frozen and storage temperature is 4°C