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During protein synthesis, mistakes in adding amino acids to the growing polypeptide chain are usually prevented. If they are not, a quality-control mechanism ensures premature termination of erroneous sequences.
How low-mass stars produce their ubiquitous magnetic fields has long puzzled astronomers. Models of how Earth accomplishes this task could hold the key to understanding the phenomenon on such stars.
Not only is the aromatase enzyme implicated in a common form of breast cancer, but it also catalyses an unusual biochemical reaction. Its crystal structure therefore offers both practical and fundamental insights.
Many organic syntheses are target-oriented — each multi-step route is designed to make just one compound. But now a diversity-oriented synthesis can make 80 different molecular skeletons in just a few steps.
Epilepsy is characterized by repetitive seizures due to abnormal electrical activity in the brain. Immune cells promote development of this disorder by mediating the breakdown of the blood–brain barrier.
The experimental verification that a bizarre quantum effect — the Casimir force — can manifest itself in its repulsive form is pivotal not only for fundamental physics but also for nanotechnology.
