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Related Concept Videos

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...
Affinity and Avidity01:41

Affinity and Avidity

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Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
Dose-Response Relationship: Selectivity and Specificity01:25

Dose-Response Relationship: Selectivity and Specificity

Drugs exert their therapeutic effects by interacting with receptors, enzymes, or ion channels that are present throughout the human body. The strength and duration of the interaction between a drug and its target receptor are characterized by the selectivity and specificity of the drug. Selectivity refers to a drug's strong preference for its intended target over other targets. For instance, isoprenaline, a non-selective β-adrenergic agonist, interacts with both β1- and β2-adrenergic receptors...
Cross-reactivity00:42

Cross-reactivity

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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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Related Experiment Video

Updated: May 9, 2026

Generation of Human Alloantigen-specific T Cells from Peripheral Blood
09:47

Generation of Human Alloantigen-specific T Cells from Peripheral Blood

Published on: November 21, 2014

Specificity, promiscuity, and precursor frequency in immunoreceptors.

Vanessa Venturi1, Brian D Rudd, Miles P Davenport

  • 1Computational Biology Group, Centre for Vascular Research, University of New South Wales, Kensington, New South Wales 2052, Australia.

Current Opinion in Immunology
|July 25, 2013
PubMed
Summary
This summary is machine-generated.

This review explores the molecular mechanisms behind the diverse T cell receptor (TCR) repertoire. Understanding TCR diversity is key to deciphering immune cell function and specificity in vivo.

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Peptide:MHC Tetramer-based Enrichment of Epitope-specific T cells
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Published on: October 22, 2012

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Last Updated: May 9, 2026

Generation of Human Alloantigen-specific T Cells from Peripheral Blood
09:47

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Published on: November 21, 2014

Peptide:MHC Tetramer-based Enrichment of Epitope-specific T cells
13:58

Peptide:MHC Tetramer-based Enrichment of Epitope-specific T cells

Published on: October 22, 2012

Area of Science:

  • Immunology
  • Molecular Biology
  • Cellular Biology

Background:

  • The immune system relies on diverse immune cell populations and immunoreceptors.
  • Immunoreceptors exhibit varying specificity, diversity, and prevalence.
  • Receptors range from universal ones on innate cells to sporadic T cell receptors (TCRs).

Purpose of the Study:

  • To review recent advances in understanding TCR diversity.
  • To elucidate the molecular mechanisms governing TCR spectra in vivo.

Main Methods:

  • Review of recent scientific literature.
  • Analysis of molecular mechanisms driving TCR diversity.

Main Results:

  • Identified key molecular mechanisms influencing TCR repertoire.
  • Highlighted the spectrum of TCRs from universal to sporadically occurring.

Conclusions:

  • Advances in understanding TCR molecular mechanisms are crucial.
  • Further research into TCR diversity will enhance knowledge of immune cell function.