High-resolution microscopy and biochemistry show that homoclusters of GPI-anchored proteins (GPI-APs) in the Golgi arrive at the apical membrane of polarized cells and then coalesce into larger heteroclusters. Therefore, sorting at the Golgi determines organization of GPI-APs at the plasma membrane.
- Simona Paladino
- Stéphanie Lebreton
- Chiara Zurzolo