We found a new protein that acts like a 'plug' for cell factories when they're dormant, then helps bring them back to life.
March 25, 2026
Original Paper
A Novel Eukaryotic Ribosome Factor Enables Translation Restart Following Cellular Dormancy
bioRxiv · 10.64898/2026.03.21.713407
The Takeaway
While it was known that cells shut down to survive starvation, the 'reboot' mechanism remained a mystery. Researchers found a protein called SNOR that physically caps the ribosome to halt production during dormancy; without this specific factor, cells are unable to restart their metabolism and wake up when nutrients return.
From the abstract
Dormancy is a survival strategy employed by all domains of life to withstand prolonged nutrient deprivation and environmental stress that is marked by a global shutdown of protein synthesis. However, the molecular mechanisms driving ribosome inactivation and reactivation during and after dormancy in eukaryotes remain poorly understood. Here, we identify SNOR, a novel SBDS-like ribosome-associated factor in Schizosaccharomyces pombe, that is upregulated and associates with ribosomes during induce