関連する実験動画
Updated: Jul 5, 2026

09:40
Analysis of the c-KIT Ligand Promoter Using Chromatin Immunoprecipitation
Published on: June 27, 2017
タンパク質キナーゼ:クロマチン関連酵素?
1Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Cell
|November 30, 2006
まとめ
タンパク質キナーゼは,転写因子と相互作用することによって,遺伝子発現を調節する. 新しい研究は,これらのキナーゼが,遺伝子の全転写領域のクロマチンにも結合することを明らかにしています.
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
- バイオケミストリー バイオケミストリー
背景:
- タンパク質キナーゼは,細胞過程の重要な調節因子である.
- 転写の開始における彼らの役割はよく確立されています.
- 最近の発見は,遺伝子発現におけるより広範な役割を示唆しています.
研究 の 目的:
- 転写の開始を超えたタンパク質キナーゼの役割を調査する.
- 転写された領域とのキナーゼ相互作用に関する最近の発見を強調するために.
主な方法:
- 最近の科学文献のレビュー.
- タンパク質キナーゼの活性と局所化に関する実験データの分析.
主要な成果:
- タンパク質キナーゼは,遺伝子調節領域の転写因子と相互作用する.
- 新しい証拠によると,キナーゼは,転写された遺伝子体全体でクロマチンと関連しています.
- この相互作用は,転写の開始段階を超えて広がります.
結論:
- タンパク質キナーゼは,遺伝子発現の調節において,これまで理解されていたよりも,より広範な役割を果たしています.
- 転写された領域に沿ったキナーゼの活動は,遺伝子発現のさまざまな側面に影響を与える可能性があります.
- クロマチンに対するキナーゼ作用のメカニズムを明らかにするために,さらなる研究が必要である.
関連する概念動画
Protein Kinases and Phosphatases
Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Histone Modification
The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
Spreading of Chromatin Modifications
The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex.
Writers
The writer is an enzyme that can...
Writers
The writer is an enzyme that can...
RNA Polymerase II Accessory Proteins
Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...
Protein Kinases and Phosphatases
Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Histone Modification
The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...

