The eggshells of palaeognath birds (e.g. ostrich, moa, kiwi, emu) have diverse homology and convergent features, and are useful modern analogues for the evolution of non-avian dinosaur eggshells.
Alberto Borsatto, Obaeda Akkad ... Francesco Luigi Gervasio
A combination of simulations and experiments was used to discover druggable cryptic pockets in non-structural protein 1, a promising but difficult target for coronaviruses, indicating a viable drug discovery approach for otherwise undruggable targets.
Tamar Skaist Mehlman, Justin T Biel ... Daniel A Keedy
Many small-molecule fragments bind differently to the allosteric protein PTP1B in room-temperature instead of cryogenic crystal structures, which may be relevant for structure-based drug design.
Monarin Uervirojnangkoorn, Oliver B Zeldin ... William I Weis
Post-refinement methods enable the use of X-ray free electron lasers for biological crystallography of systems in which sample quantity is a limitation.
Daniel A Keedy, Lillian R Kenner ... James S Fraser
The conformations of the enzyme cyclophilin A that are essential for its catalytic activity are temperature dependent and exhibit diverse responses, which is consistent with a complex energy landscape.
The flavoprotein NrdI in class Ib ribonucleotide reductase controls superoxide generation and metal site oxidation by tuning the redox properties of its flavin cofactor via steric strain induced by the formation of the R2b–NrdI protein complex.
Elin Claesson, Weixiao Yuan Wahlgren ... Sebastian Westenhoff
Time-resolved crystallography provides insight into the photochemical reactions in photoreceptor proteins, explaining the earliest steps of how plants, fungi and bacteria sense red light.