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J Immunol Methods. 1990 Aug 7;131(2):213-22.

Evaluation of dissociation constants of antigen-antibody complexes by ELISA.

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1
Chemistry Department, Lomonosov Moscow University, U.S.S.R.

Abstract

In this communication some of the advantages and constraints in the use of ELISA (enzyme-linked immunosorbent assay) procedures to evaluate antigen-antibody dissociation constants (Kd) are discussed and experimental conditions under which the effective Kd is close to the true value are proposed. Interactions between horseradish peroxidase (POD), human myoglobin and insulin with mono- and polyclonal antibodies (McAb and PcAb) were used to demonstrate that ELISA can be used to determine the average Kd, characterizing the interaction between antigens and PcAb. The Kd values obtained by ELISA were similar to those determined by luminescent immuno-cofactor analysis (LICA).

PMID:
2202761
[Indexed for MEDLINE]

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