| A | B |
|---|
| Clathrin-coated Vesicles | “Double-coated” vesicles and Clathrin molecule |
| Clathrin molecule—triskelion | 3 heavy chains + 3 light chains |
| AP Complexes | AP1, AP3 coated vesicles, AP2 coated vesicles |
| Dynamin | Necessary for “pinching off” vesicle |
| Constitutive secretion— | continuous secretion |
| Regulated secretion | depends on cell signaling events |
| Aggregation of cargo appears to take place in | trans-Golgi |
| Initial assembly of membrane proteins appears | to occur in trans-Golgi |
| Both apical and basolateral proteins go to | basolateral aspect of cell |
| Apical proteins move to apical aspect of cell by | transcytosis |
