Biology


Marine scientists at the Northeastern University Marine Science Center have shown that the behavior of middle predators in marine food webs plays an important role in the welfare of the...
Northeastern University researchers at the Marine Science Center have shown that the behavior of the "middle child" in the predator-prey food chain plays a strong role in determining how the reef as a whole will fare. The new research from the team was published online on Tuesday in the journal Ecology Letters.

Molecular & Cell Biology


This image shows a GroEL/ES nano-cage (light blue and white) with encapsulated substrate protein (orange).
Proteins are the workhorses of the cell and thus responsible for almost all biological functions including metabolism, signal transmission or the determination of the cell's shape. However, before they can fulfill their various tasks, the chain-like molecules must first adopt an intricate three-dimensional conformation. This process is called protein folding and is one of the most important processes in biology. In fact, in the event of improper folding, proteins are often no more able to carry out their duties, or even tend to clump together in aggregates. This in turn can lead to severe diseases like Alzheimer's or Parkinson's. In order to avoid this, specialized proteins, the so-called chaperones, help other proteins to adopt their proper shape.

Biology


This image shows a reconstruction of Plexus ricei.
Scientists at the University of California, Riverside have discovered a fossil of a newly discovered organism from the "Ediacara Biota" — a group of organisms that occurred in the Ediacaran period of geologic time.




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