Illustration of Endocytosis (image) NIH/National Institute of General Medical Sciences Share Print E-Mail Caption Step 1: Endocytosis allows cells (blue-green) to import proteins and other particles (pink). Step 2: The membrane bends inward like a catcher's mitt to receive the cargo. Step 3: Coils of dynamin protein (orange) seal the cargo into a compartment within the cell. The current research reveals new details about this part of the process. Step 4: At the completion of endocytosis, the cell has fully internalized the cargo within a bubble known as a vesicle. Credit National Institute of Child Health & Human Development, NIH Usage Restrictions None Share Print E-Mail 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.