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Chemical biology is the study of the chemicals and chemical reactions involved in biological processes, incorporating the disciplines of bioorganic chemistry, biochemistry, cell biology and pharmacology. Chemicals – including natural small molecules, such as lipids, carbohydrates and metals, or non-natural probe or drug molecules – are used to gain insight into biological problems at a mechanistic level.
Liquid droplets form in cells to concentrate specific biomolecules (while excluding others) in order to perform specific functions. The molecular mechanisms that determine whether different macromolecules undergo co-partitioning or exclusion has so far remained elusive. Now, two studies uncover key principles underlying this selectivity.
Ferroptosis, a cell death mechanism induced by lipid peroxidation, is pivotal in tumor suppression. A recent study shows that tumor repopulating cells evade ferroptosis and develop resistance to therapy via subverting a lipid metabolism enzyme.
The Chilean soapbark tree is the source of QS-21 — a valuable but hard-to-obtain vaccine additive. Yeast strains engineered to express all components of the QS-21 biosynthetic pathway provide an alternative route to this therapeutic.
Multi-payload antibody–drug conjugates (ADCs) are an emerging class of targeted therapeutics. Comprising a monoclonal antibody with multiple unique payloads attached, these constructs have the potential to produce synergistic anticancer effects with reduced therapeutic resistance. In this Review, methods for generating multi-payload ADCs are discussed, highlighting some key preclinical results.
Photosynthetic organisms, fungi, and animals contain distinct pathways for vitamin C biosynthesis, but the final biosynthetic step consistently involves an oxidation reaction catalysed by the aldonolactone oxidoreductases. Here, the authors investigate the origin and evolution of the diversified activities and substrate preferences featured by these enzymes using different methods and find evidence that they share a common ancestor.
A newly developed maternally selective nanobody antagonist against the angiotensin II type I receptor stabilizes the receptor in a hybrid conformation and simultaneously binds with specific small-molecule antagonists.
Liquid droplets form in cells to concentrate specific biomolecules (while excluding others) in order to perform specific functions. The molecular mechanisms that determine whether different macromolecules undergo co-partitioning or exclusion has so far remained elusive. Now, two studies uncover key principles underlying this selectivity.
Ferroptosis, a cell death mechanism induced by lipid peroxidation, is pivotal in tumor suppression. A recent study shows that tumor repopulating cells evade ferroptosis and develop resistance to therapy via subverting a lipid metabolism enzyme.
The Chilean soapbark tree is the source of QS-21 — a valuable but hard-to-obtain vaccine additive. Yeast strains engineered to express all components of the QS-21 biosynthetic pathway provide an alternative route to this therapeutic.
A hallucinogenic compound secreted by toads has served as a springboard for research into the therapeutic benefits of psychedelics. The findings suggest that these compounds exert antidepressant effects in part by binding an under-appreciated target in the brain.
An artificial metalloenzyme based on streptavidin with a biotinylated Rh(III) cofactor provides enantioselective access to various isoindolones with different functional groups. Rational engineering of the streptavidin scaffold reverses the stereoselectivity, offering an enantiodivergent method for the synthesis of isoindolones.