相关实验视频
Updated: Jan 7, 2026

09:11
Assays for Validating Histone Acetyltransferase Inhibitors
Published on: August 6, 2020
6.9K
辅助因子在人体基因素脱乙酶8:功能要求和药物发现的机会
Paula M Garcia-Franco1, F Javier Falco-Marti2, Hajar Jeblaoui3
1Institute of Biocomputation and Physics of Complex Systems (BIFI), Universidad de Zaragoza, 50018, Zaragoza, Spain; Certest Biotec S.L., 50840, San Mateo de Gallego, Zaragoza, Spain.
International journal of biological macromolecules
|December 24, 2025
概括
海斯脱乙酶8 (HDAC8) 是智力障碍和癌症的药物标. 研究人员描述了HDAC8的稳定性和辅因子相互作用,揭示了无状态作为潜在的药物发现目标.
科学领域:
- 生物化学 生物化学
- 结构生物学 结构生物学
- 药物发现 药物发现 药物发现
背景情况:
- 基因组脱乙酶8 (HDAC8) 是一种I类HDAC,涉及到X相关的智力障碍,纤维性疾病,癌症和神经病理条件.
- 开发选择性HDAC8抑制剂是具有挑战性的,因为其与其他HDACs的结构相似,并且尚未批准任何竞争性抑制剂.
- 了解HDAC8的结构稳定性和辅因子相互作用对于确定新的治疗策略至关重要.
研究的目的:
- 为了全面描述HDAC8.8的热力学稳定性.
- 研究 (Zn2+) 辅因子如何调节HDAC8的结构稳定性和结构平衡.
- 为药物发现确定HDAC8中可利用的弱点,特别关注无状态.
主要方法:
- 利用实验技术的组合进行热力学表征.
- 采用计算方法来分析结构稳定性和辅因子相互作用.
- 研究了离子在调节HDAC8的结构状态中的作用.
主要成果:
- HDAC8表现出一种全调制机制,其中离子影响其结构平衡.
- 鉴定出HDAC8的无状态是一个生理上相关的和潜在的可向的形式.
- 详细的热力学数据为HDAC8的结构稳定性和辅因子结合提供了洞察力.
结论:
- HDAC8的无状态代表了开发新型治疗剂的有希望的目标.
- 在HDAC8中依赖辅因子的构造变化为药物设计提供了独特的机会.
- 这项研究为开发针对各种疾病的选择性HDAC8抑制剂提供了基础.
相关概念视频
Covalently Linked Protein Regulators
8.6K
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....
8.6K
Spreading of Chromatin Modifications
9.2K
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...
Writers
The writer...
9.2K
Cofactors and Coenzymes
12.5K
Enzymes are proteins made of amino acids. The functional group of each constituent amino acid catalyzes a wide variety of chemical reactions via ionic interactions or acid-base reactions. However, amino acids cannot catalyze oxidation-reduction and group transfer reactions and need to be aided by non-protein components called cofactors. Cofactors are also referred to as the chemical teeth of an enzyme.
Cofactors can be metallic ions or organic molecules called coenzymes. These types of helper...
Cofactors can be metallic ions or organic molecules called coenzymes. These types of helper...
12.5K
Cofactors and Coenzymes
86.7K
Enzymes require additional components for proper function. There are two such classes of molecules: cofactors and coenzymes. Cofactors are metallic ions and coenzymes are non-protein organic molecules. Both of these types of helper molecule can be tightly bound to the enzyme or bound only when the substrate binds.
86.7K
Histone Modification
4.3K
4.3K
Histone Modification
15.8K
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...
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
15.8K

