Related Experiment Video

Updated: Sep 28, 2026

Chemically-blocked Antibody Microarray for Multiplexed High-throughput Profiling of Specific Protein Glycosylation in Complex Samples
13:21

Chemically-blocked Antibody Microarray for Multiplexed High-throughput Profiling of Specific Protein Glycosylation in Complex Samples

Published on: May 4, 2012

Use of bovine conglutinin for the assay of immune complexes

R A Eisenberg, A N Theofilopoulos, F J Dixon

    Journal of Immunology (Baltimore, Md. : 1950)
    |April 1, 1977
    PubMed

    We have used purified bovine conglutinin to develop a solid state radioimmune assay for immune complexes. Employing aggregated human IgG incubated with fresh normal human serum (complement) as a model for immune complexes, we have shown that our conglutinin assay is sensitive and highly specific for immune complexes that have fixed complement. The assay preferentially detects large complexes, is minimally influenced by monomeric IgG, and can be inhibited by high ionic strength, calcium chelation, and acetamido sugars. In addition, we have surveyed several hundred clinical sera from patients with various immunopathologic disorders and find evidence of immune complexes in some.

    More Related Videos

    Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells06:29

    Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells

    Published on: January 29, 2014

    Concanavalin A-Based Sedimentation Assay to Measure Substrate Binding of Glucan Phosphatases09:07

    Concanavalin A-Based Sedimentation Assay to Measure Substrate Binding of Glucan Phosphatases

    Published on: December 23, 2022

    Related Concept Videos

    Immunoprecipitation01:20

    Immunoprecipitation

    Immunoprecipitation, or IP, is a widely used technique that employs protein-antibody interactions to isolate proteins or protein complexes in their native state for studying protein-protein interactions, quaternary structures, or supramolecular complexes. Various modifications of the technique, including chromatin IP, cross-linking IP, and fluorescence IP, are commonly used.
    Chromatin Immunoprecipitation
    Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...
    Western Blotting01:15

    Western Blotting

    Western blotting is an analytical technique for protein identification. It has various applications in immunology and medicine, including detecting diseases like bovine spongiform encephalopathy, mad cow disease, and human and feline immunodeficiency virus from biological samples.
    The technique begins with separating proteins from the sample using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), followed by protein transfer, immunoblotting, and finally, protein detection.
    Enzyme-Linked Immunosorbent Assay01:33

    Enzyme-Linked Immunosorbent Assay

    In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
    There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen.  Enzyme-substrate reaction allows the antigen to be visualized or quantified.