Abstract

Purifying natively produced staphylococcal superantigens is an important process in the study of these proteins, as many common methods of protein purification are affected by staphylococcal protein A contamination. Here, we describe a proven approach for identifying superantigens in vitro as well as for purifying novel superantigens both in His-tagged and native forms using modern genetic tools coupled with thin-layer isoelectric focusing.

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