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Influence of ionic strength on the antibody binding of MHC products

Ionic strength has a strong influence on the binding of human Ia and HLA(A,B,C) molecules by the corresponding antibodies. A control system, BSA-anti-BSA, was influenced only minimally. The effect on the binding of anti-beta 2-microglobulin was very small when isolated chains were used, but more pronounced when using whole HLA(A,B,C) molecules. An inverse relationship exists between degree of inhibition and antibody concentration.

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