Porosomeとは 意味・読み方・使い方

Porosomes or fusion pores are cup-shaped structures in the cell membranes of eukaryotic cells where vesicles dock in the process of vesicle fusion and secretion. These structures are about 150 nanometers in diameter and contain many different types of protein, especially SNARE proteins that mediate the docking and fusion of the vesicles with the cell membrane. Once the vesicles have docked with the SNARE proteins, they swell, which increases their internal pressure. They then fuse with the membrane, and these pressurized contents are ejected from the cell.