Related Experiment Video
Updated: Jun 3, 2026

Genetic Encoding of a Non-Canonical Amino Acid for the Generation of Antibody-Drug Conjugates Through a Fast Bioorthogonal Reaction
Published on: September 14, 2018
Antibody-enzyme conjugate formation
1Department of Biochemistry, The Queen's University of Belfast, Medical Biology Centre, Belfast, Ireland, UK.
Abstract:
The ideal antibody-enzyme conjugate retains all the immunoreactivity and enzyme activity of its components, has defined and appropriate proportions, and is stable. There are many methods of labeling immunoglobulins with enzymes, but none meet all these criteria (1). Functional groups in the protein, such as amino, thiol, or saccharide groups, are exploited, and in nearly all cases bifunctional reagents are used to link the enzyme to the immunoglobulin G (IgG). The three most commonly used methods are presented here with minor modifications to the originally described procedures.
More Related Videos
10:17Creating Highly Specific Chemically Induced Protein Dimerization Systems by Stepwise Phage Selection of a Combinatorial Single-Domain Antibody Library
Published on: January 14, 2020
10:35Chemical Conjugation of a Purified DEC-205-Directed Antibody with Full-Length Protein for Targeting Mouse Dendritic Cells In Vitro and In Vivo
Published on: February 5, 2021
Related Concept Videos
Antibody Actions
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
Enzyme-Linked Immunosorbent Assay
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.
Antibody Structure and Classes
The basic structure of an antibody consists of four protein chains: two identical heavy chains and two identical light chains. These chains are held together by disulfide bonds and other non-covalent interactions, forming a Y-shaped structure.
Antibody Structure
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Immunoprecipitation
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...
Affinity and Avidity