Exomer is a heterotetrameric protein complex similar to COPI and other adaptins.
[3] Exomer is a cargo adaptor important in transporting molecules from the Golgi apparatus toward the cell membrane.
[1] An overview of the cellular localization of exomer and other cargo adaptors is shown here.
Exomer binds to 2 molecules of ADP-ribosylation factor 1 (Arf1) as shown in this figure.
A hinge region of exomer is thought to be important for forming to a highly curved membrane vesicle[1] as shown in this figure.