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SSL7 / Agarose
SSL7 (Staphylococcus aureus superantigen-like protein 7; formally known as SET1), is a staphylococcus toxin isolated from Staphylococcus aureus. SSL7 binds with a high affinity to the monomeric form of human IgA1 and IgA2.
SSL7 has no affinity for human IgG, therefore, it can be used to purify human IgA from human sera, milk and other biological samples [1,2].
SSL7 also binds the secretory form of IgA found in milk from humans, cows, and sheep. SSL7 will bind bovine IgA antibodies present in milk, but not bovine IgA present in serum. SSL7 does not bind mouse, rabbit, sheep or goat IgA present in serum [1].
Binding capacity: 0.6 - 1 mg human IgA per ml of gel |