A subset of the golgin family of large coiled-coil proteins have a GRIP domain that mediates their localization to the trans-Golgi. Two recent papers show that the Arl3p and Arl1p small GTPases act sequentially to recruit GRIP domain proteins to the Golgi.
Jackson, C. L. (2003, March 4). Membrane traffic: Arl GTPases get a GRIP on the Golgi. Current Biology. Cell Press. https://doi.org/10.1016/S0960-9822(03)00116-7