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A chemical glycobiology approach reveals that heparan-sulfate glycosaminoglycans regulate vascular development through direct interactions with angiopoietin (Ang) ligands and the Tie1 receptor of the Ang–Tie signaling system.
The ADGRL3 receptor, a member of the adhesion G-protein-coupled receptor family, is implicated in many neurological diseases. Using a novel technique involving controlled proteolysis of the receptor’s extracellular domain, this study demonstrated that ADGRL3 signals via G12/13 G proteins.
Structural analysis of transcription activation complex comprising E. coli transcription factor CueR, RNAP holoenzyme and promoter DNA reveals that CueR distorts the DNA conformation to promote the association of promoter with polymerase.
The whitefly Bemisia tabaci defends against plant glucosinolate toxins by serial addition of glucose moieties catalyzed by a pair of glycoside hydrolases, preventing toxin activation during feeding on the plant tissue.
A fluorescence-based sensor of PKA activity has increased brightness, dynamic range and signal-to-noise ratio over related sensors and is useful for visualizing kinase activity in HeLa cells, primary neurons and the cortex of awake mice.
Native ion mobility mass spectrometry reveals two isoforms of the two-pore domain K+ channel K2P4.1 have distinct binding preferences for lipids and show a relationship between the strength of individual lipid binding events and channel activity.
A bifunctional AURORA-A degrader induces the fast and specific degradation of this kinase in cancer cell lines, which enables targeting of non-catalytic, oncogenic functions of AURORA-A resulting in S-phase arrest and rampant apoptosis.
Immunomodulatory drugs are used for the treatment of multiple myeloma. ARID2, a component of the PBAF chromatin-remodeling complex, is a new pomalidomide-induced neosubstrate of CRL4CRBN, which accounts for its superior efficacy over lenalidomide.
Imaging of phosphatidylcholine, sphingomyelin and their interorganelle lipid transport in live cells, using azido-choline and a spatially limited bioorthogonal tag, suggests that autophagosomal membranes originate from the ER.
The electrogenic bacterium Geobacter synthesizes conductive extracellular nanowires to facilitate electron transfer that powers respiration. A highly conductive form of these nanowires is now revealed to be composed of oligomers of an 8-heme cytochrome, OmcZ.
Coherent Raman imaging enables mapping of chemical features at subcellular resolution, setting the stage for tracking lipids and other metabolites in intact living systems.
Virulence factors from various bacterial pathogens catalyze post-translational modification of key host proteins, including phosphate β-elimination and phosphoribosyl-linked ubiquitination, to suppress host immune defenses and promote infection.
Changes in O-GlcNAc levels controlled the actin contraction of fibroblasts in response to sphingosine-1-phosphate (S1P). Specifically, O-GlcNAc modification of the phosphatase MYPT1 maintains its activity to block S1P signaling.
Cryo-EM structural work shows sterols binding at four adjacent locations within the class F GPCR Smoothened (SMO), where the transmembrane core functions as a sterol tunnel in which occupancy activates SMO for downstream Hedgehog signaling.
Incorporation of the non-canonical amino acid 3-aminotyrosine into the chromophores of green fluorescent protein-based biosensors systematically red-shifts their fluorescent properties while maintaining brightness, dynamic range and responsiveness.