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Related Concept Videos

Antibody Structure01:10

Antibody Structure

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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.
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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.
Neutralization
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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.
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The final stage of cellular respiration is oxidative phosphorylation that consists of two steps: the electron transport chain and chemiosmosis. The electron transport chain is a set of proteins found in the inner mitochondrial membrane in eukaryotic cells. Its primary function is to establish a proton gradient that can be used during chemiosmosis to produce ATP and generate electron carriers, such as NAD+ and FAD, that are used in glycolysis and the citric acid cycle.
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The skeletal structure of polymers synthesized via radical polymerization is always branched. For example, the polymerization of ethylene by radical polymerization results in a low-density grade of polyethylene with a heavily branched skeletal structure. Here, the radical site abstracts hydrogen from the growing chain, and the radical site shifts from the end (a primary carbon center) to anywhere within the growing chain (a secondary carbon center). Consequently, the part of the chain from the...
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The Chain Rule01:30

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A system of interconnected gears provides a concrete physical interpretation of the Chain Rule in calculus. Consider three gears arranged in sequence, where the rotational speeds of the first, second, and third gears are represented by the variables x, z, and y, respectively. The first gear drives the second, and the second drives the third, so the motion of each gear depends on the one preceding it. This structure naturally leads to a two-stage variable relationship that can be analyzed using...
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Related Experiment Video

Updated: Jan 30, 2026

Identification of Mouse and Human Antibody Repertoires by Next-Generation Sequencing
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Multispecific Antibody Development Platform Based on Human Heavy Chain Antibodies.

Starlynn C Clarke1, Biao Ma1, Nathan D Trinklein1

  • 1Teneobio, Inc., Menlo Park, CA, United States.

Frontiers in Immunology
|January 23, 2019
PubMed
Summary

Researchers developed a novel platform using transgenic rats (UniRats) to produce diverse, stable, high-affinity human heavy chain-only antibodies (HCAbs). This overcomes previous limitations, enabling new antibody-based biologics.

Keywords:
B cell developmentVH domainsantibody discovery platformdomain antibodiesheavy chain antibodiesnext-generation sequencingrepertoire sequencingtransgenic rats

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Generation of Recombinant Human IgG Monoclonal Antibodies from Immortalized Sorted B Cells
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Generation of Recombinant Human IgG Monoclonal Antibodies from Immortalized Sorted B Cells

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Area of Science:

  • Immunology
  • Biotechnology
  • Molecular Biology

Background:

  • Heavy chain-only antibodies (HCAbs) offer advantages as antibody-based biologics due to their small, functional VH domains.
  • Natural human VH regions require light chain association and exhibit poor stability when expressed alone, hindering HCAb development.

Purpose of the Study:

  • To develop a platform for generating diverse, stable, high-affinity human heavy chain-only antibodies (HCAbs) selected in vivo.
  • To overcome the limitations of producing functional human HCAbs without light chain association.

Main Methods:

  • Utilized transgenic rats (UniRats) engineered with large human heavy chain V(D)J repertoires.
  • Immunized UniRats with antigens to elicit immune responses and select for HCAbs.
  • Combined antibody repertoire analysis with immunization for rapid HCAb development.

Main Results:

  • UniRats successfully produced chimeric HCAbs with fully human VH domains.
  • Demonstrated robust immune responses and diverse V gene usage in UniRats.
  • Generated large panels of stable, high-affinity, antigen-specific human HCAbs.

Conclusions:

  • The UniRat platform enables rapid, in vivo selection of diverse human HCAbs.
  • This approach overcomes challenges in producing functional human HCAbs, facilitating antibody-based biologic development.