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Updated: Jun 19, 2026

Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells
Published on: January 29, 2014
QUANTITATIVE CHEMICAL STUDIES ON COMPLEMENT OR ALEXIN : III. UPTAKE OF COMPLEMENT NITROGEN UNDER VARYING EXPERIMENTAL
M Heidelberger1, M Rocha E Silva, M Mayer
1Departments of Medicine and Biochemistry, College of Physicians and Surgeons, Columbia University, and the Presbyterian Hospital, New York.
Abstract:
1. Quantitative data are given on the effect of variations in the time of contact and the proportions of the reactants on the quantity of complement combining component nitrogen (C'1 N) found in active guinea pig serum. 2. C'1 N was the same when determined with precipitates containing excess antibody or excess antigen. 3. Finely divided specific precipitates took up the complement combining component (C'1) from subsequently added guinea pig serum almost as well as specific precipitates formed in the presence of complement.
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