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Related Concept Videos

Antibody Structure01:10

Antibody Structure

Overview
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...
Antibody Structure01:10

Antibody Structure

Overview
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...
Antibody Structure and Classes01:25

Antibody Structure and Classes

Antibodies, also known as immunoglobulins, are produced by B cells in response to foreign substances, such as bacteria and viruses. These proteins are critical for recognizing and neutralizing these substances, protecting the body from potential harm.
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 Actions01:26

Antibody Actions

Antibodies, or immunoglobulins, are critical players in the immune system's arsenal against invading pathogens. Produced by B cells and plasma cells, their primary role is to detect and bind to specific antigens, molecules found on the surface of pathogens like bacteria or viruses. Beyond antigen recognition, antibodies perform several vital functions that contribute to immune defense.
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
Diversity of Antigen Receptors01:28

Diversity of Antigen Receptors

Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.

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Updated: Jun 4, 2026

Genetic Encoding of a Non-Canonical Amino Acid for the Generation of Antibody-Drug Conjugates Through a Fast Bioorthogonal Reaction
11:02

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

Engineering antibody molecules.

R Verma1, E Boleti

  • 1Department of Immunology, Imperial College School of Medicine, London, UK.

Methods in Molecular Medicine
|February 22, 2011
PubMed
Summary
This summary is machine-generated.

Advances in polymerase chain reaction (PCR) techniques and expanded antibody V region sequence databases are accelerating antibody engineering. Antibody V region genes are amplified from various sources, including hybridomas and donors.

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Published on: September 14, 2018

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Area of Science:

  • Biotechnology
  • Immunology
  • Molecular Biology

Background:

  • Antibody engineering is rapidly advancing.
  • The availability of antibody V region sequences in databases has increased.
  • Polymerase chain reaction (PCR) techniques have seen significant improvements.

Purpose of the Study:

  • To highlight the key factors driving progress in antibody engineering.
  • To outline the methods for obtaining antibody V region genes.

Main Methods:

  • Amplification of V region genes using polymerase chain reaction (PCR).
  • Utilizing hybridomas as a source for V region gene amplification.
  • Sourcing V region genes from pre-immunized donors, naive donors, or antibody-expressing cells.

Main Results:

  • Improvements in PCR techniques facilitate V region gene amplification.
  • Increased V region sequence data in databases supports engineering efforts.
  • Successful amplification of V region genes from diverse biological sources.

Conclusions:

  • The synergy between PCR advancements and database growth is crucial for antibody engineering.
  • Diverse sources are available for antibody V region gene acquisition.
  • These developments enable further innovation in antibody-based therapeutics and diagnostics.