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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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A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes
07:59

A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes

Published on: March 25, 2014

Quantitative analysis of peptide-MHC class II interaction.

B Fleckenstein1, G Jung, K H Wiesmüller

  • 1Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, Tübingen, 72076, Germany.

Seminars in Immunology
|January 8, 2000
PubMed
Summary
This summary is machine-generated.

Understanding how peptides bind to MHC class II molecules is crucial for developing new immunotherapies. This review details methods for quantifying these interactions, aiding in the design of effective treatments.

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09:32

Immunopeptidomics: Isolation of Mouse and Human MHC Class I- and II-Associated Peptides for Mass Spectrometry Analysis

Published on: October 15, 2021

Area of Science:

  • Immunology
  • Immunochemistry
  • Molecular Biology

Background:

  • Recent advances in immunology and immunochemistry have deepened the understanding of antigen processing and presentation.
  • Major histocompatibility complex (MHC) class I and II proteins play a critical role in immune responses.

Purpose of the Study:

  • To review techniques for studying peptide-MHC class II interactions.
  • To discuss the impact of these techniques on determining quantitative binding parameters.
  • To highlight a novel method for quantifying amino acid contributions in MHC class II ligands.

Main Methods:

  • Summary of various techniques used to study peptide-MHC class II interactions.
  • Detailed presentation of a method utilizing synthetic combinatorial peptide libraries.
  • Quantitative analysis of binding affinities and kinetic data.

Main Results:

  • Established methods allow for the characterization of peptide binding to MHC class II molecules.
  • A novel peptide library approach enables quantification of individual amino acid residue contributions to binding.
  • This knowledge is fundamental for designing high-affinity ligands and predicting peptide antigens.

Conclusions:

  • Accurate quantification of peptide-MHC class II interactions is essential for advancing immunotherapies.
  • Novel methods provide deeper insights into ligand binding, facilitating the design of targeted treatments.
  • Further research in this area will drive innovation in immune system-based therapeutic concepts.