Articles

ATE1 is a highly specific enzyme hijacking tRNA from ribosomal pathways to install an arginine onto proteins as a post-translational modification. Here, the authors describe the structures of yeast ATE1 with or without its tRNA cofactor. ATE1 recognizes and selects tRNA in a unique mechanism.

Bacterial cell growth and division require the coordinated action of enzymes that synthesize and degrade cell wall polymers. Here, the authors identify enzymes that cleave the D-arabinan core of arabinogalactan, an unusual component of the cell wall of Mycobacterium tuberculosis and other mycobacteria.

Encoding quantum information in qudits instead of qubits allows for several advantages, but scalable native entangling techniques would be needed. Here, the authors show how to use light-shift gates to perform entangling operations on trapped ion systems, with a calibration overhead which is independent on the qudit dimension.

Covalent cross-linking can be used to improve the mechanical properties of fibers, but can be complicated to prepare and process. Here, the authors report fibers prepared with dynamic covalent bonds, which can reversibly dissociate to enable processing, while maintaining improved mechanical properties in the final material.

Increasing the speed of magnetization switching is an obvious pathway to improve spintronic device performance. However, very fast magnetization switching is accompanied by instabilities. Here, Gidding et al study these instabilities using optical pumping, and show that instability generated spin-waves can achieve a high enough amplitude to drive switching of the magnetization, with a distinctive coherent pattern.

Conductive hydrogels have potential as tissue-interfacing electrodes, but it is challenging to achieve both robust mechanical properties and good electrical properties. Here, the authors report a synthetic method for developing highly conductive and mechanically tough hydrogels, with a tissue-like modulus, for electrocardiogram signal recording.

Bladder cancer heterogeneity can limit treatment efficacy in individual patients. Here, the authors use patient derived organoids to develop a drug screening pipeline and identify markers of treatment response.

By combining fisheries, nutrient, and carbon cycling data, this synthesis suggests that marine kelp forests, a dominant but often undescribed habitat, provide services with a potential value of $111,000/ha/year and a global yearly value of $500 billion.

The lattice strain induced by surface ligands not only stabilizes black phase at room temperature but also enables full-range A-site tuning. Here, authors construct a detailed picture of temperature dependent behaviour of perovskite quantum dots by in situ spectroscopic and structural measurements.

A challenge in making a flexible mold stamp using roll-to-roll nanoimprint lithography is to increase area while minimizing perceptible seams. Here, based on Fourier spectral analysis of moiré patterns resulting from superposed identical patterns, a method that enables the fabrication of scalable, quasi-seamless functional surfaces without the use of alignment marks is proposed.

The low-carbon electricity sector in Europe can bring overall benefits of new investment, employment, and decreased emissions, but could sustain regional inequalities between Northern and Southern Europe.

In heterogeneous porous systems diffusion rate is controlled by pore window sizes and concentration gradient. Here authors show that in a porous metal-organic framework system, the diffusion direction can be orthogonal to the concentration gradient.

Dual photoacoustic and fast super-resolution ultrasound imaging technique bridges the physiological and structural details in vivo. The authors demonstrated that this interleaved technology allows revealing the transient changes of blood flow and blood oxygenation over time.

Predicting protein interactions is crucial for understanding biological functions. Here, authors introduce a geometric transformer that accurately identifies protein binding interfaces, enabling new insights into unexplored biology.

Low stellar ultraviolet (UV) radiation leads to low ozone abundances, therefore, less planetary UV protection. Here, the authors show that planets in the habitable zones of metal-poor stars, despite their higher UV radiation than metal-rich stars, are the best targets for search for life.

The parasitic reactions at the electrolyte/electrode interfaces inhibit the increase of the charging cut-off voltage and the improvement of energy density. Herein, the authors design multifunctional solvent molecules and propose a practical design principle to stabilize the electrolyte/electrode interfaces for high-voltage Li ion batteries.

To understand why genetically identical cells die at different times the authors measured damage dynamics in individual cells. They report lifespan variation comes not from initial conditions but from stochastic accumulation of damage that saturates repair systems.

An effective expansion system for therapeutic megakaryocyte-biased hematopoietic stem cells has not been developed. Here the authors present a microniche-based system that supports scalable expansion of human Mk-biased HSCs and identify their immune phenotype.

The CLL14 study (NCT02242942) explored the activity of obinutuzumab (anti-CD20) plus venetoclax (Bcl2 inhibitor) versus obinutuzumab plus chlorambucil in patients with previously untreated chronic lymphocytic leukemia (CLL). Here the authors report the 5-year long-term results of the clinical trial and transcriptional profiles associated with response to therapies.

Enigmatically tRNA genes exist in several hundred copies in mammalian genomes. Here the authors find a precipitous failure of development and increased amino acid misincorporation upon systematic elimination of tRNA-Phe genes in mice using CRISPR.