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Inexpensive synthetic-based matrix for both conventional and rapid purification of protein A- and tandem affinity purification-tagged proteins.


ABSTRACT: Immunoglobulin G (IgG)-Sepharose is often used for purification of protein A- and tandem affinity purification (TAP)-tagged proteins from eukaryotic cells, but because it is based on an agarose matrix, it is not always optimal for all proteins. Synthetic matrices such as IgG-Dynabeads have improved properties over IgG-Sepharose but are generally expensive. Here we describe the preparation and properties of an IgG matrix based on Fractogel EMD beads. As a synthetic-based matrix, IgG-Fractogel has clear advantages over IgG-Sepharose. IgG-Fractogel can also be used in applications that usually use IgG-Dynabeads but at a significantly reduced cost.

SUBMITTER: Sawin KE 

PROVIDER: S-EPMC2810510 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature

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Inexpensive synthetic-based matrix for both conventional and rapid purification of protein A- and tandem affinity purification-tagged proteins.

Sawin Kenneth E KE   Bicho Claudia C CC   Snaith Hilary A HA  

Analytical biochemistry 20090930 2


Immunoglobulin G (IgG)-Sepharose is often used for purification of protein A- and tandem affinity purification (TAP)-tagged proteins from eukaryotic cells, but because it is based on an agarose matrix, it is not always optimal for all proteins. Synthetic matrices such as IgG-Dynabeads have improved properties over IgG-Sepharose but are generally expensive. Here we describe the preparation and properties of an IgG matrix based on Fractogel EMD beads. As a synthetic-based matrix, IgG-Fractogel has  ...[more]

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