COPI vesicles

COPI vesicles are tiny transport bubbles within cells that help move proteins and other molecules from the Golgi apparatus back to the endoplasmic reticulum. This recycling process maintains proper cellular function and organization. COPI vesicles form when specialized proteins coat parts of the membrane, triggering them to pinch off and carry their cargo to the correct location. They are essential for cellular health, ensuring that proteins are correctly sorted and reused, and are part of the cell's internal logistics system that keeps everything running smoothly.