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相关概念视频

Ligand Binding Sites02:40

Ligand Binding Sites

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Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
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Conserved Binding Sites01:49

Conserved Binding Sites

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Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
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Protein-protein Interfaces02:04

Protein-protein Interfaces

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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Protein-Drug Binding: Determination Methods01:22

Protein-Drug Binding: Determination Methods

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Determining protein-drug binding can be achieved through indirect and direct methods, each providing valuable insights into the interaction between proteins and drugs.
Indirect methods involve isolating the bound drug from its free form in biological samples such as blood, serum, or plasma. These techniques aim to measure the percentage of drugs bound to proteins. Equilibrium dialysis is a commonly used method where the free drug concentration at equilibrium is measured by separating the bound...
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Drug-Receptor Bonds01:25

Drug-Receptor Bonds

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Drug-receptor bonds are formed through various chemical forces when drugs interact with target cells. Covalent bonds, strong and irreversible, are exemplified by DNA-alkylating anticancer agents that inhibit cell division. However, such irreversible drug binding lacks selectivity and can modify the DNA of the surrounding healthy cells. Covalent binding often contributes to tissue toxicity, as seen with chloroform and paracetamol metabolites binding to the liver, causing hepatotoxicity.
In...
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Ligand Binding and Linkage00:49

Ligand Binding and Linkage

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Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked.  In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
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Author Spotlight: Streamlining Protein Target Prediction and Validation via Molecular Docking and CETSA
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根据它们的向结合位点对共价蛋白结合剂进行分类.

Walaa A Bedewy1, John W Mulawka2, Marc J Adler2

  • 1Department of Chemistry & Biology, Toronto Metropolitan University, Toronto, ON M5B 2K3, Canada; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Helwan University, Egypt.

Bioorganic & medicinal chemistry letters
|December 12, 2024
PubMed
概括

联蛋白结合剂现在被认为是安全和有效的治疗方法,提供诸如增强的功效和对突变的抵抗等优势. 本综述探讨了它们在药物发现中的多样化的结合部位和应用.

关键词:
同价药物药物是共价药物.蛋白质结合剂 蛋白质结合剂

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科学领域:

  • 生物化学 生物化学
  • 药用化学 医学化学
  • 药物发现 药物发现 药物发现

背景情况:

  • 共价蛋白向提供了对蛋白质功能的精确控制,但面临着与非向毒性有关的历史安全问题.
  • 最近的进展已经将共价结合剂确立为安全,强效和长效的治疗药物,具有更好的选择性.
  • 这些分子克服了诸如突变诱导的耐药性等挑战,并实现了比非共价药物更高的疗效.

研究的目的:

  • 审查不同类别的结合部位易受对蛋白的共价修饰.
  • 阐明基于结合口袋和弹头特征的选择性共价准的规则.
  • 通过案例研究,展示共价蛋白结合剂在现代药物发现中的多功能应用.

主要方法:

  • 审查关于共价蛋白结合剂及其机制的现有文献.
  • 分析蛋白质结构和影响共价变化的结合部位特性.
  • 对最近开发的共价结合剂及其治疗应用的案例研究分析.

主要成果:

  • 蛋白质具有各种各样的结合口袋,适合共价性修饰.
  • 选择性向是通过优化结合点几何/物理化学和共价变量器 (战头) 反应性之间的相互作用来实现的.
  • 联结合剂可以调节蛋白质构成以抑制或增强活性,显示出广泛的治疗潜力.

结论:

  • 联蛋白结合剂是药物发现中的多功能工具,提供增强的效力,选择性和抗药性管理.
  • 了解结合点相互作用和弹头设计的细微差别对于开发安全有效的共价疗法至关重要.
  • 共价结合物的战略应用为治疗疾病和推进制药研究开辟了新的途径.