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Related Concept Videos

Antibody Structure and Classes01:25

Antibody Structure and Classes

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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.
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Immunoprecipitation01:20

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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.
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Antibody Structure01:10

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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
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Cross-reactivity00:42

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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.
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Should we ignore western blots when selecting antibodies for other applications?

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Related Experiment Video

Updated: Aug 17, 2025

Scalable High Throughput Selection From Phage-displayed Synthetic Antibody Libraries
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Scalable High Throughput Selection From Phage-displayed Synthetic Antibody Libraries

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Top Five Considerations When Choosing an Antibody.

Amy Archuleta1, Michael D Browning2

  • 1PhosphoSolutions, Aurora, CO, USA.

Methods in Molecular Biology (Clifton, N.J.)
|December 13, 2022
PubMed
Summary

Selecting the right antibody is critical for protein research success. This guide details key factors like study goals, species, clonality, applications, and detection methods to ensure confident experimental results.

Keywords:
AntibodyClonalityImmunostainingSpeciesSpecificityValidationWestern blot

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Area of Science:

  • Biotechnology
  • Immunology
  • Protein Research

Background:

  • Antibody selection is a critical yet complex step in protein-based research.
  • Potential pitfalls exist in the antibody selection process, impacting study outcomes.

Purpose of the Study:

  • To provide a comprehensive guide for selecting appropriate antibodies in research.
  • To highlight five major topics crucial for effective antibody selection.

Main Methods:

  • Discussion of study objectives and available resources.
  • Consideration of antibody species and clonality.
  • Evaluation of antibody suitability for specific applications and detection methods.

Main Results:

  • Provides background information on each selection topic.
  • Offers specifics on antibody use in laboratory settings.

Conclusions:

  • Aims to serve as a guide for vetting antibody candidates.
  • Empowers researchers to achieve confident experimental staining and results.