相关实验视频
Updated: Jul 13, 2026

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A Protocol for Computer-Based Protein Structure and Function Prediction
Published on: November 3, 2011
从CASP13到诺贝尔奖:DeepMind的AlphaFold旅程在革命性蛋白质结构预测和超越方面
1School of Computer Science and Mathematics, Kingston University, London, UK.
Current protein & peptide science
|October 6, 2025
概括
蛋白质结构预测被AlphaFold2显著提升,在CASP14中实现了前所未有的准确性. 这一突破使得大量的蛋白质结构数据库和进一步的蛋白质生物学研究成为可能.
科学领域:
- 计算生物学是一种计算生物学.
- 结构生物学是结构生物学.
- 生物信息学是一种生物信息学.
背景情况:
- 蛋白质结构预测的挑战持续了五十年多.
- 2020年,DeepMind的AlphaFold2在结构预测的临界评估 (CASP14) 中取得了历史性的突破.
- 在预测单个蛋白质链结构方面,AlphaFold2表现出前所未有的准确性.
研究的目的:
- 审查AlphaFold2对蛋白质科学的影响.
- 详细介绍自CASP14以来蛋白质结构预测的进展.
- 突出DeepMind正在进行的贡献,包括AlphaFold3.3.
主要方法:
- 在CASP13和CASP14中审查AlphaFold2的开发和性能.
- 分析AlphaFold数据库的范围和可访问性.
- 通过AlphaFold算法实现的研究进步的探索.
主要成果:
- 在CASP14.2中,AlphaFold2的全球距离测试 (GDT) 中位数为92.4,中位数为92.4.
- 现在AlphaFold数据库包含大约2.14亿个蛋白质结构.
- 开放访问AlphaFold算法已经催化了蛋白质生物学中的重大进展.
结论:
- AlphaFold2已经彻底改变了蛋白质结构预测,超越了单个链的"解决"状态.
- AlphaFold数据库和算法的可用性加速了跨多个科学领域的研究.
- 目前正在进行的开发,包括AlphaFold3,继续推动蛋白质科学及其应用的界限.
相关概念视频
Protein Folding
Overview
Protein Folding
Overview
Molecular Chaperones and Protein Folding
The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
The...
Protein Organization
Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.
The primary structure of a protein is its amino acid sequence.
Protein Folding
Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Molecular Chaperones and Protein Folding
The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
The...

