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相关概念视频

Allosteric Regulation01:08

Allosteric Regulation

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Allosteric regulation of enzymes occurs when the binding of an effector molecule to a site that is different from the active site causes a change in the enzymatic activity. This alternate site is called an allosteric site, and an enzyme can contain more than one of these sites. Allosteric regulation can either be positive or negative, resulting in an increase or decrease in enzyme activity. Most enzymes that display allosteric regulation are metabolic enzymes involved in the degradation or...
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Structure-Activity Relationships and Drug Design01:28

Structure-Activity Relationships and Drug Design

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Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
SAR studies the intricate relationship between a drug's chemical structure and biological activity. It focuses on understanding how modifications to a drug's structure can influence...
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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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The Two-State Receptor Model01:29

The Two-State Receptor Model

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The two-state receptor model explains a drug's interaction with receptors, such as G protein-coupled receptors and ligand-gated ion channels, to induce or inhibit a biological response. When no natural ligands are present, a receptor exists in an equilibrium of inactive (Ri) and active (Ra) conformations. The inactive form does not produce a response, while the active form generates a basal effect known as constitutive activity.
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Allosteric Proteins-ATCase01:19

Allosteric Proteins-ATCase

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Binding sites linkages can regulate a protein's function.  For example, enzyme activity is often regulated through a feedback mechanism where the end product of the biochemical process serves as an inhibitor.
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to  N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
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Drug Discovery: Overview01:26

Drug Discovery: Overview

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Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
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相关实验视频

Updated: May 27, 2025

Methods for the Discovery of Novel Compounds Modulating a Gamma-Aminobutyric Acid Receptor Type A Neurotransmission
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设计,合成和GluN2A负基调节器的表征,适用于体外勘探.

François P Bischoff1, Sven Van Brandt1, Marcel Viellevoye1

  • 1Janssen Research & Development, Janssen Pharmaceutica NV, Turnhoutseweg 30, B-2340 Beerse, Belgium.

Journal of medicinal chemistry
|February 17, 2025
PubMed
概括

研究人员开发了新的工具来研究GluN2A受体,这些受体对学习和记忆至关重要. 这些来自MPX-004和MPX-007的新型化合物显示出对N-甲基-D-酸盐受体体体内研究的改善特性.

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科学领域:

  • 神经科学是一个神经科学.
  • 药理学 药理学是指药理学的学科.
  • 药用化学 医学化学

背景情况:

  • N-甲基-D-酸盐 (NMDA) 受体是大脑功能的关键,包括学习和记忆.
  • 选择性调节NMDA受体亚型,如GluN2A,虽然很困难,但对于治疗神经系统疾病很重要.
  • 以前的化合物 (MPX-004,MPX-007) 对GluN2A具有选择性,但在体内使用时具有较差的物理特性.

研究的目的:

  • 优化MPX-004 / MPX-007支架,以提高类似药物的性能.
  • 开发新的,强效和选择性的GluN2A受体调节器.
  • 为研究GluN2A受体功能在体内创造新的工具.

主要方法:

  • 在MPX-004/MPX-007脚手架中的链接区域的化学修饰.
  • 针对GluN2A受体的新型化合物的合成和表征.
  • 开发一个放射性连体和化合物的药理动力学研究.

主要成果:

  • 鉴定出具有强效和选择性的GluN2A向化合物,具有增强的类似药物的特性.
  • 化合物1使得能够创建第一个基于GluN2A负基调节器 (NAM) 的放射性连接体.
  • 化合物11在体内显示出改善的药理动力学和剂量依赖的受体占用率.

结论:

  • 优化的支架为研究GluN2A受体提供了新的工具.
  • 这些化合物为进一步研究NMDA受体功能和相关疾病提供了潜力.
  • 开发的放射性体和药理动力学数据推动了对GluN2A受体调节的研究.