“Orange roughy” became a hot commodity only after the agency changed its name from “slimehead” in the 1970s. Schoenung and GFS both remain hopeful that copi can have the same impact.

A different protein called coat protein I (COPI; red) forms vesicles for transport in the other direction, from the Golgi to the ER. COPI also forms vesicles for intra-Golgi transport. Clathrin ...