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Clinical Chemistry, Vol 29, 1982-1984, Copyright © 1983 by American Association for Clinical Chemistry
JJ Killion and EM Holtgrewe
We describe a simple protocol for the preparation of F(ab')2 fragments of immunoglobulin G, based upon the known Fc- binding properties of protein A-Sepharose. The fragment preparations of xenogeneic and allogeneic anti-IgG were noncytotoxic to intact target cells, and were able to block the cytotoxicity of intact antibody. This method should therefore be useful for functional studies not requiring biochemical homogeneity.
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