UniKineG:统一坐标的几何图形使强大的酶动力学预测成为可能
Xueyu Wang1, Peiqin Shi2, Jian Mao2,3
1School of Artificial Intelligence and Computer Science, Jiangnan University, Wuxi 214122, China.
International journal of molecular sciences
|February 27, 2026
概括
UniKineG是一个新的深度学习模型,通过分析酶基质3D结构,准确地预测酶动态参数. 这种计算工具增强了对酶-小分子相互作用的理解,用于药物发现.
科学领域:
- 生物化学 生物化学
- 计算生物学 计算生物学
- 药物发现 药物发现 药物发现
背景情况:
- 酶动态参数 (kcat,Km,kcat/Km) 对酶效率和基质特异性至关重要.
- 这些参数的实验性确定是资源密集型的,由于酶催化物的复杂空间性质,准确的预测是具有挑战性的.
- 现有的方法通常将酶和基质视为单独的实体,限制了预测准确性.
研究的目的:
- 引入UniKineG,这是一个新的深度学习框架,用于预测酶运动参数.
- 模拟酶基质复合体的显式空间状态,以提高预测准确度.
- 为计算酶学提供一个强大的和可通用的工具.
主要方法:
- UniKineG集成了分子对接,为酶基质复合体创建了一个统一的3D坐标系统.
- 一个带有几何向量感知子 (GVPs) 的异质图形神经网络在这个共享的几何上下文中捕捉了基于向量的相互作用.
- 框架模型指向键,疏水接触和静电互补性.
主要成果:
- UniKineG表现出极大的稳定性,并克服了对高序列同质学的依赖.
- 该模型显示了分布外数据集的优越泛化,包括未见的酶序列和多样化的基质支架.
- UniKineG 始终优于最先进的预测器,实现高精度的动力参数预测.
结论:
- UniKineG为理解3D空间中的酶-小分子相互作用奠定了坚实的基础.
- 该框架为计算酶学提供了一个变革性的工具,并加速了药物发现.
- 这种基于结构的深度学习方法推进了酶运动预测领域.
更多相关视频
13:00Hot Biological Catalysis: Isothermal Titration Calorimetry to Characterize Enzymatic Reactions
Published on: April 4, 2014
21.5K
07:08Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues
Published on: July 14, 2015
7.8K
相关概念视频
Introduction to Enzyme Kinetics
35.1K
Enzyme kinetics studies the rates of biochemical reactions. Scientists monitor the reaction rates for a particular enzymatic reaction at various substrate concentrations. Additional trials with inhibitors or other molecules that affect the reaction rate may also be performed.
The experimenter can then plot the initial reaction rate or velocity (Vo) of a given trial against the substrate concentration ([S]) to obtain a graph of the reaction properties. For many enzymatic reactions involving a...
The experimenter can then plot the initial reaction rate or velocity (Vo) of a given trial against the substrate concentration ([S]) to obtain a graph of the reaction properties. For many enzymatic reactions involving a...
35.1K
Enzyme Kinetics
104.9K
Enzymes speed up reactions by lowering the activation energy of the reactants. The speed at which the enzyme turns reactants into products is called the rate of reaction. Several factors impact the rate of reaction, including the number of available reactants. Enzyme kinetics is the study of how an enzyme changes the rate of a reaction.
Scientists typically study enzyme kinetics with a fixed amount of enzyme in the controlled environment of a test tube. When more reactant, or substrate, is...
Scientists typically study enzyme kinetics with a fixed amount of enzyme in the controlled environment of a test tube. When more reactant, or substrate, is...
104.9K
Predicting Molecular Geometry
46.4K
VSEPR Theory for Determination of Electron Pair Geometries
46.4K
Catalytically Perfect Enzymes
5.2K
The theory of catalytically perfect enzymes was first proposed by W.J. Albery and J. R. Knowles in 1976. These enzymes catalyze biochemical reactions at high-speed. Their catalytic efficiency values range from 108-109 M-1s-1. These enzymes are also called 'diffusion-controlled' as the only rate-limiting step in the catalysis is that of the substrate diffusion into the active site. Examples include triose phosphate isomerase, fumarase, and superoxide dismutase.
Most enzymes...
Most enzymes...
5.2K
Determination of Michaelis Constant and Maximum Elimination Rate
574
The Michaelis constant (KM) and the theoretical maximum process rate (Vmax) are vital parameters in the Michaelis-Menten equation, central to many biochemical reactions. They provide essential insights into enzyme kinetics and drug metabolism.
These parameters can be estimated by analyzing plasma concentration data post-drug administration. A notable example of this application is phenytoin, a drug with capacity-limited kinetics. It's recommended that phenytoin should be administered at two...
These parameters can be estimated by analyzing plasma concentration data post-drug administration. A notable example of this application is phenytoin, a drug with capacity-limited kinetics. It's recommended that phenytoin should be administered at two...
574
Introduction to Mechanisms of Enzyme Catalysis
11.0K
For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes...
11.0K
