Sorry, you need to enable JavaScript to visit this website.

Bienvenue sur l'Institut Polytechnique de Paris

Thematics

News

How ribosomes in archaea enter hibernation
The Structural Biology of the Cell Laboratory (BIOC*), in collaboration with Ifremer in Brest, the CBI in Toulouse, and Institut Pasteur, has identified a molecule in archaea capable of putting the ribosome, a cellular machinery essential to cells, into a state of dormancy. This “hibernation factor” binds to the ribosome when external conditions are unfavorable. Ribosomes play a key role: they assemble proteins from genetic information in all living...
Exosome secretion: beyond simple membrane fusion
In an article published in the Journal of Extracellular Vesicles, scientists show that the release of exosomes—extracellular vesicles that enable the removal of cellular waste and communication between cells—is more complex than previously thought. They demonstrate the involvement of two enzymes that cleave proteins involved in anchoring exosomes to the cell membrane. Because the activity of these enzymes is finely modulated, this discovery opens new...