转移学习可以利用更大的数据集来更好地预测蛋白质稳定性的变化
Henry Dieckhaus1,2, Michael Brocidiacono2, Nicholas Randolph1,3
1Department of Biochemistry and Biophysics, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA.
bioRxiv : the preprint server for biology
|August 7, 2023
概括
预测突变导致的蛋白质稳定性变化对于了解疾病和开发新疗法至关重要. 新的深度学习模型ThermoMPNN使用大型稳定性数据集和转移学习准确预测这些变化.
科学领域:
- 生物物理学的生物物理.
- 计算生物学 计算生物学
- 蛋白质工程是指蛋白质工程.
背景情况:
- 氨基酸突变可以降低蛋白质的热力学稳定性,导致各种疾病.
- 改进稳定性的工程蛋白质对于生物医学研究和治疗应用至关重要.
- 精确的对突变诱导的稳定性变化的计算预测是必不可少的,但由于数据的局限性而具有挑战性.
结论:
- 热MPNN为蛋白质稳定性预测和蛋白质设计提供了有价值的工具.
- 该研究强调了大型数据集和转移学习在计算蛋白质稳定性分析中的有用性.
- 开发的模型可供研究人员和医疗专业人员使用.
相关概念视频
Conservation of Protein Domains Over Different Proteins
10.9K
Protein domains are small structurally independent units that are part of a single amino acid chain. Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
10.9K
Improving Translational Accuracy
11.6K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
11.6K
Conservation of Protein Domains
3.1K
3.1K
Survival Tree
110
Survival trees are a non-parametric method used in survival analysis to model the relationship between a set of covariates and the time until an event of interest occurs, often referred to as the "time-to-event" or "survival time." This method is particularly useful when dealing with censored data, where the event has not occurred for some individuals by the end of the study period, or when the exact time of the event is unknown.
Building a Survival Tree
Constructing a...
Building a Survival Tree
Constructing a...
110
Conserved Binding Sites
4.2K
Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
4.2K
Bacterial Protein Maturation
36
Bacterial protein maturation is a tightly regulated process that ensures newly synthesized polypeptides achieve correct functional conformations. This maturation involves a series of modifications, folding events, and quality control steps, often assisted by specialized chaperone proteins.N-Terminal ModificationsThe maturation of bacterial polypeptides begins cotranslationally as the polypeptide exits the ribosome. The first amino acid, N-formylmethionine (fMet), is typically modified at the...
36


