関連する実験動画
Updated: Aug 19, 2026

09:47
Generation of Human Alloantigen-specific T Cells from Peripheral Blood
Published on: November 21, 2014
まとめ
ヒストコンパティビリティアンチゲンのアルファチェーンDNA配列を比較すると,多形性遺伝子の発生とDR,DC,SB遺伝子ファミリーの進化の洞察が得られます.
科学分野:
- 免疫遺伝学 免疫遺伝学
- 分子生物学は分子生物学である.
- 人間の遺伝学 人間の遺伝学
背景:
- クラスIIのヒト相容性抗原は,免疫反応に不可欠である.
- これらの遺伝子のポリモルフィズムは,多様な免疫能力に寄与する.
- これらの抗原の遺伝的基礎を理解することは,免疫学の鍵です.
研究 の 目的:
- 4つのヒトII級ヒト相容性抗原α鎖のDNA配列を提示し比較する.
- 人間とマウスのアルファ鎖の配列の進化的関係を分析する.
- 人間のMHCクラスIIファミリー内のポリモルフィズムと進化の生成のためのメカニズムを提案する.
主な方法:
- DC1α,DC4α,DXα,SBαのためのcDNAとゲノムクローンのDNAシーケンシング.
- 人間のDRαとマウスのI-Aα/I-Eα配列を比較した配列分析.
主要な成果:
- 4つのヒトII級ヒト相容性抗原α鎖の詳細なDNA配列が提供されています.
- 比較分析は,関連するヒトとマウスの配列との類似点と違いを強調します.
- 配列データは,遺伝的多様性を理解するための基礎を提供します.
結論:
- 提示されたDNA配列は,ヒトのIIクラスヒト相容性抗原の構造的および機能的多様性についての洞察を提供します.
- 比較分析により,DR,DC,SBファミリーにおけるポリモルフィズムと進化を駆動する潜在的なメカニズムが示唆されている.
- この研究は,ヒトの免疫系の遺伝学と進化の理解に貢献します.
さらに関連する動画
関連する概念動画
Multiple Allele Traits
The Concept of Multiple Allelism
Blood Types
Human blood is classified into different types based on the presence of antigens on the red blood cell's surface and antibodies in the plasma. Proper identification of blood type is essential for successful blood transfusion. The International Society of Blood Transfusion has identified 38 human blood types based on the surface antigens on the red blood cells. The most common types are ABO, Rh, and MNS blood types.
ABO blood group
ABO antigens are glycoproteins encoded by genes present on...
ABO blood group
ABO antigens are glycoproteins encoded by genes present on...
Exon Recombination
The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon has three reading...
Exon shuffling follows “splice frame rules.” Each exon has three reading...
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.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
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...
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...
Genetic Variation
Genetic variation is the diversity in DNA sequences found among individuals of the same species. This diversity is crucial for a species' survival because it helps organisms adapt to environmental changes. Genetic variation begins with fertilization, where an egg and sperm cell merge. Each of these cells carries 23 chromosomes, up to 46 in the fertilized egg. Chromosomes are long DNA strands that contain genes, the basic units of heredity.
Genes exist in different versions called alleles, which...
Genes exist in different versions called alleles, which...

