The proteasome droplets in the nucleus (IMAGE) Tokyo Metropolitan Institute of Medical Science Caption The proteasome droplets in the nucleus. Hyperosmotic stress induces liquid-liquid phase separation of the proteasome mediated by polyubiquitinated proteins and RAD23B. Top: Fluorescent microscopic image of the proteasome droplets (Green: ubiquitin, Red: proteasome). Bottom: Schematic illustration of the proteasome droplets. Credit Tokyo Metropolitan Institute of Medical Science Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.