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Thrombospondin 4 has been shown to protect the heart and the skeletal muscle by enhancing matrix secretion and membrane stability thanks to its intracellular function. Here the authors show that thrombospondin 3 exacerbates injury-induced cardiomyopathy and promotes destabilization of the cardiomyocyte membrane by impairing integrin trafficking to the sarcolemma.
Adenine base editors are an important contribution to the genome editing toolbox. Here the authors present EndoV-seq, an endonuclease-based assay for evaluating genomewide off-target effects of base editing.
Resistive random-access memory is operated based on the formation and disruption of nanoscale conductive filaments, but a mechanistic understanding of this process remains unclear. Here, Wang et al. develop a surface-diffusion model to describe lifetime of filaments ranging from microseconds to years.
The glycome of parasites can have immunomodulatory properties or help to avoid immune surveillance, but details are unknown. Here, Martini et al. characterize the N-glycome of the canine heartworm, reveal an unprecedented complexity, particularly in anionic N-glycans, and determine recognition by components of the immune system.
How photoexcitations influence superconductivity at the FeSe/SrTiO3 interface remains elusive. Here, the authors report fast optical generation of a metastable superconducting state and its reversal by voltage pulses at the FeSe monolayer/SrTiO3 interface.
TOP1MT is a topoisomerase that is localised to mitochondria. Here, the authors show that TOP1MT has a tumor promoting role in hepatocellular carcinoma by supporting mitochondrial translation and that its deficiency limits tumorigenicity.
The Membrane-Proximal External Region (MPER) of the HIV Env gp41 subunit is a target for broadly neutralizing antibodies. Here, the authors apply super-resolution stimulated emission depletion (STED) microscopy on single virions and provide insights into how the MPER epitope is recognized.
Fluids may avoid crystallization via an underlying mechanism that remains hotly debated. Teich et al. show that hard polyhedral particles form glass because of the competition of local structural motifs, each of which is prevalent in crystals self-assembled from particles of closely related shapes.
It is becoming clear that the dynamics of transcription factors may be important for gene regulation. Here, the authors study the implications of oscillatory and chaotic dynamics of NF-κB and demonstrate that it allows a degree of control of gene expression and can generate phenotypic heterogeneity.
The solubility of sulfur in basaltic melt has important implications for the formation of magmatic ore deposits. Here, the authors show that magma ascent and sulfur-degassing influence the degree to which basaltic magmas are enriched in economically-important chalcophile and siderophile elements.
The oncogene STAT5 is involved in cancer cell proliferation. Here, the authors use STAT5 protein to assemble its own small molecule inhibitors via Mannich ligation (three-component-reactions) and show that the resultant ligands can inhibit the proliferation of cancer cells in a mouse model.
Mass spectrometry is widely used for large-scale lipid profiling but distinguishing unsaturated lipid isomers is still challenging. Here, the authors present an analytical platform for high-throughput identification of lipid C=C location isomers in clinical samples, showing that isomer ratios may guide biomarker discovery.
The maintenance polyamines homeostasis is important for cell growth, and several cancers harbor elevated levels of polyamines that may contribute to sustained proliferative potential. Here the authors demonstrate that polyamines participate in DNA double-strand break repair through the stimulation of RAD51-mediated homologous DNA pairing and strand exchange.
Synthesizing precise conjugated nanostructures on a surface requires fine control over the covalent reaction pathways. Here, the authors show that reversible coordinative bonds can be used to template on-surface C-C coupling reactions, guiding the formation of porous organic nanoribbons.
Small molecule metabolites like phenylalanine can form amyloid-like structures but so far this has only been demonstrated in vitro. Here the authors generate a yeast in vivo model of adenine self-assembly and characterize the adenine assemblies in cells by indicative amyloid dye and anti-adenine assemblies antibodies.
Synaptic exocytosis depends on formation of the SNARE complex but its assembly mechanism is still under debate. Here, the authors identify an interaction between Munc13-1 and synaptobrevin-2 that is critical for the transition of the Munc18-1/syntaxin-1 complex to the SNARE complex.
Increased abundance of antibiotic resistance genes in the environment may be due to selection pressure by residual antibiotics, or to contamination with resistant bacteria from human faeces. Here, Karkman et al. analyze metagenomic data and find evidence supporting the second scenario in most cases.
Osteoarthritis is characterised by degeneration of joint cartilage. Here the authors show that the RNA-binding protein ZFP36L1 is upregulated in chondrocytes of humans and mice with osteoarthritis, and that its knockdown in mouse joints protects chondrocytes against apoptosis by modulating the function of heat shock proteins.
The instability of the host structure of cathode materials and sluggish aluminium ion diffusion are the major challenges facing the Al-ion battery. Here the authors show AlxMnO2·nH2O as a cathode that allows for reversible Al3+ (de)intercalation in an aqueous electrolyte and impressive electrochemical performance for a battery device.
P-glycoprotein, an ATP-binding cassette (ABC) transporter, extrudes a large variety of xenobiotics from the cell which protects tissues from toxins. Here authors solve a pair of X-ray structures of homodimeric P-glycoprotein and resolve structural elements proposed to participate in the mechanism of the transporter.