A number of clinically validated drugs have been developed by repurposing the CUL4-DDB1-CRBN-RBX1 (CRL4CRBN) E3 ubiquitin ligase complex with molecular glue degraders to eliminate disease-driving proteins. Here, we present the identification of a first-in-class GSPT1-selective cereblon E3 ligase modulator, CC-90009, that targets acute myeloid leukemia blasts and leukemia stem cells. Read more »
ALS Work Using Scattering/Diffraction
These techniques make use of the patterns of light produced when x-rays are deflected by the closely spaced lattice of atoms in solids and are commonly used to determine the structures of crystals and large molecules such as proteins.
Stacking the Deck for Custom-Built Hybrid Materials
Researchers fabricated an electronically coupled heterostructure from a novel semiconducting 2D polymer and a 2D transition metal dichalcogenide. Dramatic optical and electronic changes emerged as polymer thickness decreased, underscoring the potential for the discovery of emergent phenomena in studies of hybrid heterostructures. Read more »
Inhalable COVID-19 Protection via Synthetic Nanobodies
Protein structures obtained in part at the ALS helped researchers to increase the potency of simplified antibodies (nanobodies) designed to neutralize SARS-CoV-2. Stable enough to be used in inhalers or nasal sprays, the nanobodies offer a new option, aside from injected vaccines, for COVID-19 prevention and treatment. Read more »
Molecular Complex Removes Copper Ions from Water
X-ray analyses provided key insights into the copper uptake mechanisms in a new organic-inorganic hybrid material that quickly and selectively removes copper ions from water. The material provides an efficient tool for copper remediation as well as a blueprint for creating other hybrid materials for removing toxic metals from water. Read more »
The Odd Structure of ORF8: Scientists Map the Coronavirus Protein Linked to Immune Evasion and Disease Severity
Researchers determined the atomic structure of a coronavirus protein thought to help the pathogen evade and dampen response from human immune cells. Researchers determined the atomic structure of a coronavirus protein thought to help the pathogen evade and dampen response from human immune cells. Read more »
Functionalization of Benzotriazole-Based Conjugated Polymers for Solar Cells: Heteroatom vs Substituents
Understanding the structure-property relationship is important when designing new conjugated polymers for high-efficiency polymer solar cells. Rech et al. systematically explore the impact of a variety of functional groups, including nitrogen heteroatoms, fluorine substituents, and cyano groups. Read more »
Newly Discovered Photosynthesis Enzyme Yields Evolutionary Clues
Scientists have discovered a primitive form of rubisco, a photosynthesis enzyme that has helped shape life on Earth. Detailed information about its structure, determined using complementary techniques at the ALS, will help scientists understand how carbon-fixing organisms oxygenated the atmosphere and how modern plants evolved. Read more »
Domain-Swap Dimerization of Acanthamoeba castellanii CYP51 and a Unique Mechanism of Inactivation by Isavuconazole
We investigated the mechanism of action of antifungal drugs in the human pathogen Acanthamoeba castellanii. We discovered that the enzyme target formed a dimer via an N-termini swap, whereas drug-bound AcCYP51 was monomeric. Cover image shows a molecular model of the AcCYP51 dimer in a phospholipid bilayer. Read more »
Scientists Design New Framework for Clean Water
A promising solution to water pollution from abandoned copper mines relies on materials that adsorb copper ions from wastewater, but commercially available products lack the required chemical specificity and load capacity. A team of scientists has designed a new crystalline material that targets and traps copper ions from wastewater with unprecedented precision and speed. Read more »
Balanced Charge Transport Optimizes Industry‐Relevant Ternary Polymer Solar Cells
In this article, Szymanski et al. develop novel, cost‐effective ternary polymer solar cells printed in semi‐industrial conditions from a relatively benign ink, which do not require any further processing. These solar cells show good stability and efficiency due to balanced charge-carrier mobilities achieved by optimizing the composition and morphology. Read more »
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