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Uncertainty-aware machine learning models are used to automate the training of reactive force fields. The method is used here to simulate hydrogen turnover on a platinum surface with unprecedented accuracy.
Transcription rates are regulated by the interactions between RNA polymerase, sigma factor, and promoter DNA sequences in bacteria. Here the authors combine massively parallel experiments & machine learning to develop a predictive biophysical model of transcription, validated across 22132 bacterial promoters, and apply it to the design and debugging of genetic circuits.
The authors present an approach to connect polymer dynamics to force response by integrating optical tweezers with differential dynamic microscopy. They measure blends of ring and linear DNA and observe a resonant response, which is suppressed by the presence of microtubules.
Nanoscale intermetallic compounds are promising catalysts but the synthesis remains a challenge. The authors develop a dealloying technique to fabricate nanoporous intermetallic electrocatalysts with fine structures for efficient hydrogen production.
This study presents a last millennium reconstruction of Atlantic Multidecadal Variability fluctuations. This sufficiently long and validated reconstruction suggests the potential approach of a tipping point in the North Atlantic current system.
Scientists have been puzzled by the disparity between climate simulations of the past 12,000 years and geological records. Dong et al. reconstructed past annual and seasonal temperatures from land snail records to examine the potential seasonal bias.
Structural biology, complemented by biochemistry experiments and RNA-binding assays show that the Gemin5 C-terminal region adopts a decamer architecture. Gemin5 decamerization is essential for its role in regulating mRNA translation.
Phosphate is critical for all life on Earth but its origins have remained enigmatic. Experiments indicate that phosphate may have been abundant in ancient Fe-rich seawater, providing a crucial ingredient for the origins of life on Earth.
Salvinia molesta plant has the ability to maintain a stable air layer when submerged underwater due to its specific form. The authors propose here a soft lithography fabrication method of artificial Salvinia leaf assisted with capillary-force induced clustering of micropillar array, for hydrodynamic drag reduction.
The Spns lipid transporters use ion gradients to drive substrate transport, including bioactive sphingolipids. Here, Dastvan et al. investigated how binding of protons powers the conformational changes that enable broad transport by a bacterial Spns.
A general synthetic solution toward high-oxidation state securinega alkaloids could be useful for systematic biological studies. Here, the authors report a divergent synthesis of C4-oxygenated securinega alkaloids via stereocontrolled diversifications on the piperidine core.
Volumetric functional imaging is widely used for recording neuron activities in vivo for many experimental organisms. Here the authors report supervised deep-denoising methods for improved whole-brain imaging, large field-of-view imaging in freely moving animals, and recovering complex neurite structures in C. elegans.
Circulating subtypes of Influenza viruses seasonally change and therefore vaccines need to be matched to these strains each year, which is why there is a need for next-generation vaccines that can elicit broad and cross-type protection. Here, Li et al. generate a human-mouse chimeric antibody with broad neutralizing activity against seasonal and pandemic H1N1 and some H5N1 viruses in vivo and identify residues on hemagglutinin relevant for its broad neutralization activity.
When a molecule interacts chemically with a metal, its orbitals hybridise with metal states to form the new eigenstates of the coupled system. Here, the authors show that in addition to overlap in real space and energy, hybridizing states must fulfil a momentum-matching condition.
A short isoform of the Tet1 enzyme (Tet1s) that oxidizes the DNA 5-methylcytosine (5mC) mark is overexpressed in tumors. Here the authors show Tet1s, but not full length Tet1, changes localization over the cell cycle upon ubiquitination and Uhrf1 interaction and is targeted to heterochromatin during S-phase. This leads to 5mC oxidation and loss of DNA methylation in heterochromatin.
How animals are able to rapidly adapt their behaviour to changing environmental demands remains poorly understood. Here, the authors use a modelling approach to show that synaptic plasticity in motor cortex may underlie rapid motor learning, demonstrating that small, correlated connectivity changes that preserve neural covariance are highly effective in driving behavioural adaptation.
Assessing metabolic activity within single cells rather than at a population level has a number of advantages. Here, the authors use a flow and mass cytometry based approach that assess the metabolic differences between populations of human immune stimulatory and tolerogenic dendritic cells.
Here, the authors demonstrate multipath twisting of acoustic waves with a thin metamaterial layer enabling high-speed transfer of information with no time-consuming post-processing or sensor scanning, showing important application potential in underwater communication.
The single stranded DNA binding protein RPA coordinates DNA metabolism using multiple protein and DNA interaction domains. Here, the authors show that the chaperone-like protein Rtt105 staples RPA domains to prevent untimely protein interactions.
Traumatic brain injury can cause long-term disability and thus constitutes a substantial healthcare burden worldwide. Here, the authors report a conductive microporous hydrogel to improve angiogenesis and recovery of brain function in traumatic brain lesions.