Real-space texture and pole-figure analysis using the 3D pair distribution function on a platinum thin film [0.03%]
基于三维配对分布函数的Pt薄膜实空间织构和极图分析
Sani Y Harouna-Mayer,Songsheng Tao,ZiZhou Gong et al.
Sani Y Harouna-Mayer et al.
An approach is described for studying texture in nanostructured materials. The approach implements the real-space texture pair distribution function (PDF), txPDF, laid out by Gong & Billinge {(2018 ▸). arXiv:1805.10342 [cond-mat]}. It is d...
Higher resolution in cryo-EM by the combination of macromolecular prior knowledge and image-processing tools [0.03%]
结合结构的先验知识和图像处理工具提高冷冻电镜的分辨率
Erney Ramírez-Aportela,Jose M Carazo,Carlos Oscar S Sorzano
Erney Ramírez-Aportela
Single-particle cryo-electron microscopy has become a powerful technique for the 3D structure determination of biological molecules. The last decade has seen an astonishing development of both hardware and software, and an exponential growt...
Refinement of anomalous dispersion correction parameters in single-crystal structure determinations [0.03%]
单晶结构测定中奇异散射修正参数的改进
Florian Meurer,Oleg V Dolomanov,Christoph Hennig et al.
Florian Meurer et al.
Correcting for anomalous dispersion is part of any refinement of an X-ray dif-fraction crystal structure determination. The procedure takes the inelastic scattering in the diffraction experiment into account. This X-ray absorption effect is...
Neutron crystallographic analysis of the nucleotide-binding domain of Hsp72 in complex with ADP [0.03%]
中子晶体分析Hsp72核苷酸结合域与ADP的复合物结构
Takeshi Yokoyama,Shiho Fujii,Andreas Ostermann et al.
Takeshi Yokoyama et al.
The 70 kDa heat-shock proteins (Hsp70s) are ATP-dependent molecular chaperones that contain an N-terminal nucleotide-binding domain (NBD) and a C-terminal substrate-binding domain. Hsp70s bind to misfolded/unfolded proteins and thereby prev...
Serial small- and wide-angle X-ray scattering with laboratory sources [0.03%]
采用实验室光源的串行小角和广角X射线散射技术
Mark A Levenstein,Karen Robertson,Thomas D Turner et al.
Mark A Levenstein et al.
Recent advances in X-ray instrumentation and sample injection systems have enabled serial crystallography of protein nanocrystals and the rapid structural analysis of dynamic processes. However, this progress has been restricted to large-sc...
The Haemophilus influenzae HipBA toxin-antitoxin system adopts an unusual three-com-ponent regulatory mechanism [0.03%]
Haemophilus influenzae HipBA 毒素-抗毒素系统采用了一种不同寻常的三组分调控机制
Ji Sung Koo,Sung-Min Kang,Won-Min Jung et al.
Ji Sung Koo et al.
Type II toxin-antitoxin (TA) systems encode two proteins: a toxin that inhibits cell growth and an antitoxin that neutralizes the toxin by direct inter-molecular protein-protein inter-actions. The bacterial HipBA TA system is implicated in ...
Wayne F Anderson
Wayne F Anderson
The unexpected findings that are described by Czub et al. [IUCrJ (2022), 9, 551-561] provide a very interesting study demonstrating how small differences in structure can result in significant changes in the relative affinities of the seemi...
Quantitative analysis of diffuse electron scattering in the lithium-ion battery cathode material Li1.2Ni0.13Mn0.54Co0.13O2 [0.03%]
锂离子电池正极材料Li1.2Ni0.13Mn0.54Co0.13O2的弥散电子态的定量分析
Romy Poppe,Daphne Vandemeulebroucke,Reinhard B Neder et al.
Romy Poppe et al.
In contrast to perfectly periodic crystals, materials with short-range order produce diffraction patterns that contain both Bragg reflections and diffuse scattering. To understand the influence of short-range order on material properties, c...
A general method for directly phasing diffraction data from high-solvent-content protein crystals [0.03%]
一种直接对含高溶剂含量蛋白质晶体的衍射数据进行相位确定的通用方法
Richard Lawrence Kingston,Rick P Millane
Richard Lawrence Kingston
A procedure is described for direct phase determination in protein crystallography, applicable to crystals with high solvent content. The procedure requires only the diffraction data and an estimate of the solvent content as input. Direct p...
Self-transformation of solid CaCO3 microspheres into core-shell and hollow hierarchical structures revealed by coherent X-ray diffraction imaging [0.03%]
相干X射线衍射成像揭示固相CaCO3微球的自变形形成核壳及中空层次结构
Thomas Beuvier,Yuriy Chushkin,Federico Zontone et al.
Thomas Beuvier et al.
The self-transformation of solid microspheres into complex core-shell and hollow architectures cannot be explained by classical Ostwald ripening alone. Here, coherent X-ray diffraction imaging and 3D X-ray fluorescence were used to visualiz...