関連する実験動画
Updated: Jul 7, 2026

13:51
The MultiBac Protein Complex Production Platform at the EMBL
Published on: July 11, 2013
SWI/SNF型のBAF複合体によるCSF1プロモーターの調節
1Laboratory of Molecular Immunology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA.
Cell
|August 18, 2001
まとめ
BAF複合体は,染色体を変えることで遺伝子発現を制御する. それは80の遺伝子を活性化し,プロモーターの活性化のために特定のDNA配列と結合因子を要求し,潜在的にZ-DNA形成を伴う.
科学分野:
- 分子生物学は分子生物学である.
- 遺伝子規制 遺伝子規制
- クロマチンのダイナミクス
背景:
- 哺乳類のBAF (BRG1/BRM関連因子) 複合体は,遺伝子発現の重要な調節因子である.
- BAF複合体によるクロマチン構造の変化は,転写結果に影響する.
研究 の 目的:
- SW-13細胞におけるBAF複合体によって調節される遺伝子を特定する.
- CSF1プロモーターに焦点を当てて,BAF複合媒介遺伝子活性化のメカニズムを解明する.
主な方法:
- BAF複合体で治療されたSW-13細胞における遺伝子発現分析.
- タンパク質結合を評価するためにクロマチンの免疫降水 (ChIP) を用いる.
- 核染色体テンプレートにおけるBAF複合体の活性を研究するためのインビトロアッセイ.
主要な成果:
- BAF複合体は,SW-13細胞で80の遺伝子を活性化し,2つの遺伝子を抑制する.
- NFI/CTFがCSF1プロモーターに結合することは,BAFの複合的な採用とアクティベーションに不可欠です.
- CSF1プロモーターのBAF複合体依存活性化には,Z-DNA形成配列が含まれ,Z-DNA形成を促進します.
結論:
- BAF複合体は,遺伝子調節において重要な役割を果たし,遺伝子活性化および抑制に明確な影響を及ぼします.
- BAF複合体がZ-DNA形成を促進し,活性化のためにCSF1プロモーターのオープンクロマチンを安定させるモデルが提案されています.
関連する概念動画
Covalently Linked Protein Regulators
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein.
These groups modify specific amino acids in a protein.
Protein Complexes with Interchangeable Parts
Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order to...
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order to...
Differentiation of Common Myeloid Progenitor Cells
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
Regulation of Hematopoietic Stem Cells
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
TGF - β Signaling Pathway
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors are of three kinds RI, RII, and RIII. The RI...
Cerebrospinal Fluid
Cerebrospinal fluid (CSF) is a colorless liquid that flows around the brain and the spinal cord, playing a vital role in the protection, support, and overall function of the central nervous system (CNS). CSF production, circulation, and absorption are tightly regulated processes essential for the brain and spinal cord to function properly.
CSF Production
CSF is produced mainly in the choroid plexus, a network of capillaries and ependymal cells located within the ventricular system of the brain.
CSF Production
CSF is produced mainly in the choroid plexus, a network of capillaries and ependymal cells located within the ventricular system of the brain.

