通过深度神经网络实现的大型非化蛋白质的溶液状态甲基NMR光谱学
Gogulan Karunanithy1, Vaibhav Kumar Shukla1,2, D Flemming Hansen3,4
1Department of Structural and Molecular Biology, Division of Biosciences, University College London, London, WC1E 6BT, UK.
Nature communications
|June 13, 2024
概括
深度神经网络使得从质子化样本中获得高质量的甲基-TROSY NMR 光谱. 这一进步克服了化挑战,扩大了大型生物分子的NMR应用.
科学领域:
- 生物化学 生物化学
- 结构生物学 结构生物学
- 频谱学是一种光谱学.
背景情况:
- 甲基-TROSY NMR光谱对于大型生物分子至关重要,但需要困难的化.
- 目前的方法限制了对细菌系统中不易产生的蛋白质的研究.
研究的目的:
- 开发一种深度学习方法,用于从质子化,均标记13C的样本中处理NMR光谱.
- 为了实现甲基-TROSY NMR光谱质量,与传统的化样本相提并论.
主要方法:
- 利用深度神经网络来分析来自质子化,均标记13C的蛋白质的NMR光谱.
- 实验验证了对三种蛋白质 (42-360 kDa) 和大肠杆菌酸盐合成酶G (81 kDa) 的3D NOESY光谱的方法.
主要成果:
- 深度神经网络成功处理了质子化NMR光谱,产生了高质量的甲基-TROSY光谱.
- 经过处理的光谱的质量与从消毒样本中获得的光谱相美.
- 在3DNOESY光谱中观察到的NOE交叉峰与已知的马拉酸合成酶G的结构很好地一致.
结论:
- 对NMR数据的深度学习分析为研究大型生物分子提供了除的可行替代方案.
- 这种方法将NMR光谱的范围扩展到以前由于生产限制而无法获得的蛋白质.
- 这种方法代表了分析结构生物学复杂磁共振数据的重大进步.
更多相关视频
14:55Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
Published on: September 17, 2017
15.4K
09:25Author Spotlight: Exploring Intrinsically Disordered Protein Dynamics Through NMR Relaxation Experiments
Published on: November 1, 2024
1.9K
相关概念视频
01:33Proteomics
7.3K
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 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...
7.3K
01:25Applications Of NMR In Biology
3.7K
Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
3.7K
01:20¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)
1.0K
When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
1.0K