Results 171 to 180 of about 3,647 (218)

Silicon allotropes by large‐volume high‐pressure techniques: crystal growth mechanisms, phase diagrams and hexagonal nanostructured Si‐6H by in situ X‐ray diffraction and computational methods

Acta Crystallographica Section B, Volume 82, Issue 3, Page 280-298, June 2026.
In situ X‐ray diffraction is used for exploring Si crystallography and for studying phase‐transformation mechanisms in elemental Si and Na–Si systems. We present original results of hexagonal silicon, Si‐6H and a critical analysis of the past‐decade discoveries of silicon Si‐4H and Si24 using large‐volume high‐pressure techniques.Metastable allotropes ...
Alexandre Courac, Yann Le Godec
wiley   +1 more source

A user-friendly goniometer-compatible fixed-target platform for macromolecular crystallography at synchrotrons. [PDF]

J Appl Crystallogr
Ghosh S, Banacore A, Norder P, Bjelčić M, Kabbinale A, Nileshwar P, Wehlander G, de Sanctis D, Basu S, Orlans J, Vallejos A, Chavas LMG, Neutze R, Brändén G.   +13 more
europepmc   +1 more source

l‐threo‐d‐galacto‐Octitol: a curious non‐classical order–disorder polytype with an 88 Å axis

Acta Crystallographica Section B, Volume 82, Issue 3, Page 352-359, June 2026.
The sugar alcohol l‐threo‐d‐galacto‐octitol crystallizes in a structure with P43212 pseudo‐symmetry and a highly elongated unit cell (c ≈ 88 Å). In distinct layers of the structure, symmetry is broken by an asymmetric hydrogen‐bonding network leading to polytypism, which is discussed in the framework of order–disorder theory.GalC8 [l‐threo‐d‐galacto ...
Nina Biedermann, Christoph Standfest, Christian Stanetty, Berthold Stöger, Alexander Virovets, Tobias Wolflehner   +5 more
wiley   +1 more source

Generation and modulation of catalytically relevant states of a dye-decolourizing peroxidase using time-resolved serial femtosecond crystallography with drop-on-chip mixing and X-ray-driven reduction. [PDF]

Acta Crystallogr D Struct Biol
Lučić M, Glerup J, Aller P, Axford D, Devenish N, Park J, Shilova A, Landeros de la Isla A, Strange RW, Zhou T, Owen RL, Worrall JAR, Hough MA.   +12 more
europepmc   +1 more source

Diffuse scattering in silver hypodiphosphate, Ag4(P2O6), probed by 3D ED

Acta Crystallographica Section C, Volume 82, Issue 6, Page 277-284, June 2026.
A 3D ED study of silver hypodiphosphate, Ag4(P2O6), has revealed diffuse scattering and was used to model real structure.The crystal structure of silver hypodiphosphate, Ag4(P2O6), was determined using 3D ED. The average structure is hexagonal, described in the space group P63/mcm, and is isomorphous with the average structure of known Li4(P2S6).
Vasyl Kinzhybalo, Jakub Wojciechowski, Dorota A. Kowalska, Vladyslav Maliuzhenko, Katarzyna A. Ślepokura   +4 more
wiley   +1 more source

Decision-making in serial crystallography: a simple test to quickly determine whether sufficient data have been collected. [PDF]

Acta Crystallogr D Struct Biol
von Stetten D, Pearson AR.
europepmc   +1 more source

Crystal structure of the plant GABA aminotransferase AtGABA‐T from Arabidopsis thaliana

Acta Crystallographica Section F, Volume 82, Issue 6, Page 208-215, June 2026.
The crystal structure of A. thaliana γ‐aminobutyric acid aminotransferase (GABA‐T) reveals that plant GABA‐T belongs to the class III aminotransferase family and employs a C‐terminal arginine residue for γ‐aminobutyric acid recognition, in contrast to the N‐terminal arginine used by class II enzymes.γ‐Aminobutyric acid aminotransferase (GABA‐T) is a ...
Naofumi Okoda, Suguru Okuda, Kenta Tsutsumi, Hideaki Itoh, Ken Okamoto, Hiroshi Kawakami, Kaori Sano, Kenji Kobata, Koji Nagata   +8 more
wiley   +1 more source

Crystal structures of PCNA1 and PCNA2 from Aeropyrum pernix: implications for a distorted heterotrimeric sliding clamp

Acta Crystallographica Section F, Volume 82, Issue 6, Page 216-221, June 2026.
Crystal structures of A. pernix PCNA1 (1.60 Å resolution) and PCNA2 (2.17 Å resolution) are reported. High‐resolution analysis reveals a rare nonproline cis‐peptide bond in PCNA1 that may cause steric hindrance at the subunit interface, suggesting a distorted or symmetry‐broken heterotrimeric PCNA ring.Aeropyrum pernix is a hyperthermophilic archaeon ...
Tong Wang, Sonoko Ishino, Yoshizumi Ishino, Takuji Oyama   +3 more
wiley   +1 more source

Erratum: A simple goniometer-compatible flow cell for serial synchrotron X-ray crystallography. Corrigendum. [PDF]

J Appl Crystallogr
Ghosh S, Zorić D, Dahl P, Bjelčić M, Johannesson J, Sandelin E, Borjesson P, Björling A, Banacore A, Edlund P, Aurelius O, Milas M, Nan J, Shilova A, Gonzalez A, Mueller U, Brändén G, Neutze R.   +17 more
europepmc   +1 more source

Structural analysis of the flexibility of the Ubl2 domain within the papain‐like protease of SARS‐CoV‐2

Acta Crystallographica Section F, Volume 82, Issue 6, Page 222-230, June 2026.
The ubiquitin‐like domain 2 (Ubl2) of the SARS‐CoV‐2 virus is necessary for the stability and catalytic efficiency of its papain‐like protease (PLpro). Our crystallographic study reveals that the Ubl2 domain exhibits notable flexibility and can adopt a conformation that places itself away from the PLpro catalytic domain, representing a new conformation
Gian Luca Freiherr von Scholley, Martina Schaefer, Mark D. Tully, Marc-Andre Hograindleur, Montserrat Soler-López, Roman C. Hillig, Christoph Mueller-Dieckmann, Eaazhisai Kandiah   +7 more
wiley   +1 more source