The relationship between the Ewald sphere and exit wave explored using focal series electron micrographs [0.03%]
基于焦系列电子显微图像探讨Ewald球与出射波函数的关系
J Bernard Heymann
J Bernard Heymann
CryoEM reconstructions must be performed along the Ewald spheres to achieve resolutions beyond the projection approximation limit. The linear theory of image formation models the scattering from the specimen and focusing by the objective le...
Anisotropic diffraction of materials with fibre symmetry: application to chitin cuticle [0.03%]
具有纤维对称性的材料的各向异性衍射及其角质层的应用研究
Yanhong Wang,Tim Snow,Nick Terrill et al.
Yanhong Wang et al.
Understanding the structure-function relationships in anisotropic fibre-symmetric materials is critical for both biological insight and bioinspired design. We present a generalized analytical model for X-ray diffraction intensity from nanof...
Linear-scaling aspherical crystallographic refinement of proteins: a case study for crambin and rubredoxin [0.03%]
线性缩放非球面蛋白质结晶学优化：crambin和rubredoxin的实例研究
Justin Bergmann,Florian Kleemiss,Joel Creutzberg et al.
Justin Bergmann et al.
Hirshfeld atom refinement (HAR) provides a more realistic interpretation of crystallographic data than the standard independent atom model (IAM) by using aspherical atomic form factors derived from quantum mechanical (QM) calculations. With...
Obtaining single crystals containing cationic porphyrins from aqueous solutions: a systematic approach including nano-crystallization, organic modifiers and gel crystallization [0.03%]
从水溶液中获得含阳离子四吡咯化合物的单晶：纳微晶、有机改性剂以及凝胶化法系统的结晶研究
Rayk A Schmitz,Florian C Brunner,Leonard P Zelder et al.
Rayk A Schmitz et al.
Obtaining high-quality single crystals containing charged molecules from aqueous solutions can sometimes be challenging. In this publication, we studied the crystallization of polycationic porphyrins. Crystals of three polycationic porphyri...
Structure of the bacteriophage PhiKZ non-virion RNA polymerase bound to a p119L open promoter analogue [0.03%]
PhiKZ噬菌体非衣壳RNA聚合酶与p119L开放启动子类似物复合物的晶体结构研究
Chao Sheng Chen,Natàlia de Martín Garrido,Maria Yakunina et al.
Chao Sheng Chen et al.
Bacteriophage ΦKZ (PhiKZ) was the first identified member of a family of massive bacterial viruses. ΦKZ infects Pseudomonas aeruginosa, which kills tens of thousands every year, and it therefore has potential as a bacteriophage therapy. O...
Structural insights into the antiviral efficacy of AG7404 against human rhinovirus 3C proteases [0.03%]
关于AG7404对人鼻病毒3C蛋白酶抗病毒作用的结构洞察
Juyeon Lee,Hye Lim Lee,Hyojin Kim et al.
Juyeon Lee et al.
Human rhinoviruses (hRVs) are major causative agents of the common cold and contribute to lower respiratory tract infections. Although extensive research efforts continue to explore potential therapeutic interventions, no clinically approve...
Broadband high-resolution X-ray ptychography system spanning tender to hard X-ray regimes [0.03%]
宽硬X射线带通高分辨率X射线ptychography系统
Yuhei Sasaki,Nozomu Ishiguro,Masaki Abe et al.
Yuhei Sasaki et al.
X-ray ptychography is a high-resolution imaging technique capable of resolving nanoscale structures and probing chemical states. However, despite advances, most conventional X-ray ptychography systems have been designed to operate within a ...
Sven Lidin
Sven Lidin
Polyphasic Fe2P2O7 is a prime example of how the temperature-dependent changes in structure shed light on the magnitudes of local interactions. State-of-the-art methods and equipment are prerequisites for the analysis of these, often subtle...
Paulina M Dominiak,Ángel Martín Pendás,Krzysztof Woźniak
Paulina M Dominiak
This editorial introduces the `Focus on Quantum Crystallography' collection, coinciding with the centenary of quantum mechanics and highlighting the convergence of crystallography and quantum theory. It outlines recent advances and applicat...
Malcolm J Cooper
Malcolm J Cooper
The IUCr's close association with quantum crystallography, rightly celebrated by this focused anniversary issue, has its origins in regular meetings of experimentalists and theoreticians interested in electron charge and spin density back i...