Phase separation of p62: roles and regulations in autophagy.

Summary: Imagine your cells have a specialized cleanup crew to handle waste. A protein called p62 acts like a foreman. When it spots cellular trash marked with specific tags (ubiquitin), p62 binds to it and clumps together, behaving like oil droplets in water. These "droplets" trap the waste and signal the cell to build a container—called an autophagosome—around them. This review explains how these droplets form and how the cell carefully tunes this process during times of stress to ensure efficient cleaning and recycling.