对蛋白质与蛋白质相互作用的大型数据集的比较评估
Christian von Mering1, Roland Krause, Berend Snel
1European Molecular Biology Laboratory, Meyerhofstrasse 1, 69012 Heidelberg, Germany.
Nature
|May 10, 2002
概括
这项研究比较了酵母中大规模蛋白质相互作用预测方法. 通过对已知交互的准确性和偏差进行评估,它可以识别这些强大工具的优点和弱点,以了解蜂网络.
科学领域:
- 蛋白质组学是指蛋白质组学
- 系统生物学 系统生物学
- 酵母遗传学 酵母遗传学
背景情况:
- 蛋白与蛋白相互作用 (PPI) 对细胞功能至关重要,并形成复杂的调节网络.
- 大规模方法的近期进展显著扩大了在酵母中的PPI的预测.
- 了解这些预测方法的准确性和偏差对于可靠的生物解释至关重要.
研究的目的:
- 为了全面比较不同的大规模方法来预测酵母中的蛋白质-蛋白质相互作用.
- 评估这些预测方法的准确性,潜力,偏见,优点和弱点.
- 为了验证预测的相互作用与已知的酵母蛋白相互作用的精选参考集.
主要方法:
- 对多种大规模PPI预测方法的比较分析.
- 使用实验验证的PPI参考集评估预测准确性.
- 在不同方法中识别和描述偏差和性能差异.
主要成果:
- 在不同的PPI预测方法中观察到精度和覆盖率的显著差异.
- 确定了特定的偏见,突出了每个方法的优点和弱点.
- 该比较提供了对酵母大规模PPI预测可靠性的定量评估.
结论:
- 没有任何一种方法在各个方面都卓越;各种方法的组合可能是最优的.
- 这些发现指导了在酵母研究中选择和解释PPI数据.
- 这种比较分析增强了大规模PPI图的实用性,用于剖析细胞调节网络.
相关概念视频
Protein-protein Interfaces
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Protein Networks
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Protein-Protein Interfaces
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Protein Networks
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Proteomics
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...


