相关实验视频
Updated: Jul 6, 2025

06:15
Interactive Molecular Model Assembly with 3D Printing
Published on: August 13, 2020
10.0K
学习拓表面和几何结构,用于3D分子生成
Odin Zhang1, Tianyue Wang1, Gaoqi Weng1
1Innovation Institute for Artificial Intelligence in Medicine of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China.
Nature computational science
|January 4, 2024
概括
SurfGen使用钥匙锁方法设计分子,学习详细的原子相互作用,以便更好地发现药物. 这种方法有效地解决了诸如突变诱导的耐药性等挑战.
科学领域:
- 计算化学是一种计算化学.
- 药物发现 药物发现
- 医学中的人工智能.
背景情况:
- De novo分子设计对于药物发现至关重要,但在生成结构特定分子方面面临挑战.
- 现有的方法往往无法捕捉详细的原子相互作用,限制了它们对各种治疗点的有效性.
研究的目的:
- 开发一种新型的计算模型,用于高效,结构特定的de novo分子设计.
- 通过结合详细的原子相互作用和口袋表面拓,解决当前生成模型的局限性.
主要方法:
- 介绍了SurfGen,这是一个采用两个等价神经网络的模型:地质-GNN和地质原子-GNN.
- 地测-GNN捕捉了目标蛋白的结合口袋表面上的拓相互作用.
- 地质原子-GNN模拟了潜在药物分子 (连接体) 与口袋表面之间的空间相互作用.
主要成果:
- 与现有方法相比,SurfGen在多个基准测试中表现出优越的性能.
- 该模型对口袋结构变化的高灵敏度,使得精确的分子生成.
- 成功生成了密切遵循钥匙锁原则的分子.
结论:
- 在计算机辅助的药物发现中,SurfGen通过有效地学习原子相互作用以进行新的设计,为计算机辅助的药物发现带来了重大进步.
- 该模型为生成适合特定蛋白质标的分子提供了强大的解决方案.
- 对于应对诸如突变诱导的耐药性等挑战,SurfGen的功能特别有希望.
相关概念视频
Newman Projections
16.9K
Different notations are used to represent the three-dimensional structure of molecules on two-dimensional surfaces. One of the most commonly used representations is the dash-wedge formula. The dashed wedges, solid wedges, and the plane lines indicate the groups situated behind the plane, coming out of the plane, and in the plane, respectively.
The organic molecules rotate across the single bonds leading to numerous temporary three-dimensional structures of varying energy known as...
The organic molecules rotate across the single bonds leading to numerous temporary three-dimensional structures of varying energy known as...
16.9K
Predicting Molecular Geometry
34.3K
VSEPR Theory for Determination of Electron Pair Geometries
34.3K
Molecular Models
38.4K
Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
38.4K
Fischer Projections
13.3K
Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines.
13.3K
VSEPR Theory
9.4K
Valence shell electron-pair repulsion theory (VSEPR theory) enables us to predict the molecular structure around a central atom from an examination of the number of bonds and lone electron pairs in its Lewis structure. The VSEPR model assumes that electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between these electron pairs by maximizing the distance between them. The electrons in the valence shell of a central atom form either bonding...
9.4K
Molecular Shapes
56.9K
Molecules have characteristic shapes that are crucial for their function. The arrangement of various electron groups around the central atom dictates their molecular geometry. Electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between the electron pairs by maximizing the distance between them. The valence electrons form either bonding pairs, located primarily between bonded atoms, or lone pairs.
Two regions of electron density in a diatomic...
Two regions of electron density in a diatomic...
56.9K

