Through connections with a membrane, clathrin is able to deform the membrane and form this sort of a cup that forms this sort of a bubble, or a vesicle, that's now capturing some of the proteins that were outside of the cell.
Kroz povezivanje s membranom, klatrin može deformirati membranu i napraviti ovakvu šalicu koja se formira  u ovaj mjehurić ili šupljine, koje sada hvataju neke bjelančevine koje su bile izvan stanice.