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Updated: Jun 27, 2026

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Hi-C: A Method to Study the Three-dimensional Architecture of Genomes.
Published on: May 7, 2010
免疫グロブリン重鎖の3D構造の位置:長距離ゲノム相互作用への影響
Suchit Jhunjhunwala1, Menno C van Zelm, Mandy M Peak
1Division of Biological Sciences, 0377, University of California, San Diego, La Jolla, CA 92093, USA.
Cell
|April 22, 2008
まとめ
免疫グロブリン重鎖 (Igh) は,ループ状のクラスターを持つコンパートメントを形成する. B細胞発達の過程で,V (H) 領域はD (H) -J (H) 元素と結合し,ゲノム相互作用を促進します.
科学分野:
- ゲノミクスゲノミクスとは
- 免疫学 免疫学とは
- クロマチンの生物学
背景:
- 免疫グロブリン重鎖 (Igh) には,多数のコーディング要素 (V, H, D, H, J, H, C, H) が含まれています.
- Igh locusの3次元の (3D) 組織は,ほとんど特徴づけられていないままです.
研究 の 目的:
- Igh locus.の3D構造と地形を調査するために.
- Igh locus内のクロマチンの配列を理解するために.
主な方法:
- 空間距離の分布は,Ighの位置を網羅する12のゲノムマーカー間で測定されました.
- コンピュータシミュレーションを使用して,代替クロマチンの配列をモデル化しました.
- トライラテレーションとトリプルポイントの角度測定により,Igh要素の相対的な3D位置が決定されました.
主要な成果:
- Igh locusは,リンクヤーで接続されたループのクラスターからなる明確なコンパートメントに編成されています.
- 早期B細胞発達の過程で,V (H) とD (H) -J (H) 要素を含む分割と重要な形状の変化が観察されました.
- プロB細胞では,V (H) 領域 (2Mbp) がD (H) 元素と並べて,頻繁に長距離のゲノム相互作用を可能にします.
結論:
- Ighの位置は,ループ状の染色体を持つ3D構造の区画化を示しています.
- Ighの位置のコンフォームダイナミクスは,V (H) 遺伝子のアクセシビリティとB細胞の発達にとって極めて重要です.
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The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
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
Antibodies consist of four polypeptide chains: two identical heavy...
Antibody Structure
Overview
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The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
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
Antibodies consist of four polypeptide chains: two identical heavy...
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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.
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.

