Tracking Chirality in Real Time

[ad_1] Artist’s impression of a time-resolved circular dichroism measurement of a photoexcited spin-crossover complex. Credit: Ella Maru Studio, Inc. Chiral molecules exist in two forms known as enantiomers, which are mirror images of each other and non-superposable – much like a pair of hands. While most chemical and physical properties are shared, enantiomers can have […]

Read More

Nanotechnology Enables 3D Visualization of Crucial RNA Structures at Near-Atomic Resolution

[ad_1] This illustration is inspired by the Paleolithic rock painting in the Lascaux cave, signifying the acronym of our method, ROCK. Figuratively, the patterns of the rock art in the background (brown) are the 2D projections of the engineered dimeric construct of the Tetrahymena group I intron, while the main object in the front (blue) […]

Read More

Unlocking Complex Workings of the Biological Clock

[ad_1] Research team reveals what drives the circadian rhythms in cyanobacteria. Scientists want to increase their understanding of circadian rhythms, those internal 24-hour biological clock cycles of sleeping and waking that occur in organisms, ranging from humans to plants to fungi to bacteria. A research team has examined the complex workings of cyanobacteria and can […]

Read More

Cryo-EM Reveals How “911” Molecule Helps Repair DNA Damage

[ad_1] The image depicts how the 911 clamp is loaded onto DNA. Credit: Courtesy of Dr. Huilin Li, Van Andel Institute When something goes wrong during DNA replication, cells call their own version of 911 to pause the process and fix the problem — a failsafe that is critical to maintaining health and staving off […]

Read More

Respiration in Tetrahymena Is Different Than in Other Organisms

[ad_1] Tetrahymena, a tiny single celled-organism, turns out to be hiding a surprising secret: it’s doing respiration – using oxygen to generate cellular energy – differently from other organisms such as plants, animals, or yeasts. The discovery, published today (March 31, 2022) in the journal Science, highlights the power of new techniques in structural biology […]

Read More