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相关概念视频

The Equilibrium Binding Constant and Binding Strength02:18

The Equilibrium Binding Constant and Binding Strength

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The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:
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相关实验视频

Updated: Jun 30, 2025

Author Spotlight: A Computational Approach to Decipher Amino Acid Preferences in Multispecific Protein-Protein Interactions
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通过片扫描解读ACE2-RBD结合亲和力:一种分子动力学模拟方法.

Jiahu Tang1, Ruibin Hu2, Yiyi Liu3

  • 1Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China.

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|March 21, 2024
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概括

这项研究使用计算和实验方法确定了SARS-CoV-2与ACE2结合的关键片. 这种快速微阵列的方法有助于理解病毒的进入,并开发疗法.

关键词:
分子动力学模拟模型酸是一种酸.塑材料是一种塑材料.蛋白质与蛋白质的相互作用这就是SARS-CoV-2病毒.

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Biosensor-based High Throughput Biopanning and Bioinformatics Analysis Strategy for the Global Validation of Drug-protein Interactions
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Semi-automated Biopanning of Bacterial Display Libraries for Peptide Affinity Reagent Discovery and Analysis of Resulting Isolates
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科学领域:

  • 生物化学 生物化学
  • 免疫学 免疫学 免疫学
  • 计算生物学 计算生物学

背景情况:

  • 蛋白与蛋白相互作用 (PPI) 在生物过程和疾病中至关重要.
  • 确定PPI的结合表位是药物发现和诊断的关键.
  • 严重急性呼吸系统综合征冠状病毒2 (SARS-CoV-2) 尖端受体结合域 (RBD) 与人类血管酶转化酶2 (ACE2) 的相互作用是病毒进入的关键.

研究的目的:

  • 调查SARS-CoV-2 RBD与ACE2结合的表位信息.
  • 开发一种快速且具有成本效益的方法来识别PPI中涉及的关键片.
  • 用实验数据验证计算预测.

主要方法:

  • 利用理论计算,包括对接和分子动力学模拟.
  • 采用基于等离子体材料芯片的类微阵列技术进行实验验证.
  • 将开发的方法与菌体显示技术和表面等离子体共振 (SPR) 进行了比较.

主要成果:

  • 计算模拟确定了RBD中的片段#14 (YNYLYRLFRKSNLKP),它具有与ACE2的最高结合强度.
  • 基微阵列实验证实了理论发现,验证了碎片#14的强度结合.
  • 理论和实验方法的结合证明了快速和成本效益.

结论:

  • 该研究成功地确定了SARS-CoV-2 RBD的高亲和性片段,用于ACE2结合.
  • 片微阵列技术为PPI中的表位图绘制提供了一个快速和经济的平台.
  • 这种方法可以加快对传染病的诊断,疫苗和基于的治疗方法的开发.