Improved NMR transfer of magnetization from protons to half-integer spin quadrupolar nuclei at moderate and high magic-angle spinning frequencies [0.03%]
改善了在中等和高旋转魔法角频率下将磁化从氢核转移到具有半整数自旋的四极核中的NMR转移性
Jennifer S Gómez,Andrew G M Rankin,Julien Trébosc et al.
Jennifer S Gómez et al.
Half-integer spin quadrupolar nuclei are the only magnetic isotopes for the majority of the chemical elements. Therefore, the transfer of polarization from protons to these isotopes under magic-angle spinning (MAS) can provide precious insi...
A novel sample handling system for dissolution dynamic nuclear polarization experiments [0.03%]
一种用于溶解动态核极化实验的新颖样品处理系统
Thomas Kress,Kateryna Che,Ludovica M Epasto et al.
Thomas Kress et al.
We present a system for facilitated sample vitrification, melting, and transfer in dissolution dynamic nuclear polarization (DDNP) experiments. In DDNP, a sample is typically hyperpolarized at cryogenic temperatures before dissolution with ...
Extending the applicability of P3D for structure determination of small molecules [0.03%]
扩展P3D在小分子结构测定中的应用范围
Alain Ibáñez de Opakua,Markus Zweckstetter
Alain Ibáñez de Opakua
The application of anisotropic nuclear magnetic resonance (NMR) parameters for the correct structural assignment of small molecules requires the use of partially ordered media. Previously we demonstrated that the use of P3D simulations usin...
Introduction to a special issue of Magnetic Resonance in honour of Robert Kaptein at the occasion of his 80th birthday [0.03%]
纪念Robert Kaptein教授八十华诞专刊序言
Rolf Boelens,Konstantin Ivanov,Jörg Matysik
Rolf Boelens
This publication, in honour of Robert Kaptein's 80th birthday, contains contributions from colleagues, many of whom have worked with him, and others who admire his work and have been stimulated by his research. The contributions show curren...
Malcolm H Levitt,Christian Bengs
Malcolm H Levitt
The quantum state of a spin ensemble is described by a density operator, which corresponds to a point in the Liouville space of orthogonal spin operators. Valid density operators are confined to a particular region of Liouville space, which...
Phosphoserine for the generation of lanthanide-binding sites on proteins for paramagnetic nuclear magnetic resonance spectroscopy [0.03%]
用于蛋白质上生成镧系结合位点的磷酸丝氨酸，用于顺磁核磁共振光谱学
Sreelakshmi Mekkattu Tharayil,Mithun Chamikara Mahawaththa,Choy-Theng Loh et al.
Sreelakshmi Mekkattu Tharayil et al.
Pseudocontact shifts (PCSs) generated by paramagnetic lanthanide ions provide valuable long-range structural information in nuclear magnetic resonance (NMR) spectroscopic analyses of biological macromolecules such as proteins, but labelling...
An electrochemical cell for in operando 13C nuclear magnetic resonance investigations of carbon dioxide/carbonate processes in aqueous solution [0.03%]
一种电化学电池用于原位研究水溶液中二氧化碳/碳酸根过程的核磁共振碳谱分析
Sven Jovanovic,P Philipp M Schleker,Matthias Streun et al.
Sven Jovanovic et al.
In operando nuclear magnetic resonance (NMR) spectroscopy is one method for the online investigation of electrochemical systems and reactions. It allows for real-time observations of the formation of products and intermediates, and it grant...
Effects of radial radio-frequency field inhomogeneity on MAS solid-state NMR experiments [0.03%]
径向射频场不均匀性对旋转固体核磁实验的影响
Kathrin Aebischer,Zdeněk Tošner,Matthias Ernst
Kathrin Aebischer
Radio-frequency field inhomogeneity is one of the most common imperfections in NMR experiments. They can lead to imperfect flip angles of applied radio-frequency (rf) pulses or to a mismatch of resonance conditions, resulting in artefacts o...
Conformational features and ionization states of Lys side chains in a protein studied using the stereo-array isotope labeling (SAIL) method [0.03%]
采用立体阵列同位素标记(SAIL)方法研究蛋白质中赖氨酸侧链的构象特征和离子化状态
Mitsuhiro Takeda,Yohei Miyanoiri,Tsutomu Terauchi et al.
Mitsuhiro Takeda et al.
Although both the hydrophobic aliphatic chain and hydrophilic ζ-amino group of the Lys side chain presumably contribute to the structures and functions of proteins, the dual nature of the Lys residue has not been fully investigated usi...
Four-dimensional NOE-NOE spectroscopy of SARS-CoV-2 Main Protease to facilitate resonance assignment and structural analysis [0.03%]
用于SARS-CoV-2主要蛋白酶共振分配和结构分析的四维NOE-NOE光谱学研究
Angus J Robertson,Jinfa Ying,Ad Bax
Angus J Robertson
Resonance assignment and structural studies of larger proteins by nuclear magnetic resonance (NMR) can be challenging when exchange broadening, multiple stable conformations, and 1H back-exchange of the fully deuterated chain pose problems....