Ribosome remodeling drives translation adaptation during viral infection and cellular stress.

Ribosome remodeling during viral infection and cellular stress enhances translation of specific mRNAs, with rpL40 recruited to specialized ribosomes in human cells.

• Why it matters: Understanding how ribosomes adapt to cellular perturbations reveals mechanisms behind pathogen replication and cell survival, filling a key knowledge gap in translation regulation.
• What they did: The study used molecular and cellular techniques to show that viral entry recruits rpL40 to a non-canonical site on ribosomes, creating specialized structures that favor viral mRNA translation, and that similar remodeling occurs during metabolic stress.
• The result: This conserved ribosome remodeling mechanism enables cells and viruses to dynamically adjust protein synthesis, offering insights into host-pathogen interactions and cellular adaptation processes.