ARFRP1 Polyclonal antibody

ARFRP1, or ADP-ribosylation factor-related protein 1, is a small GTPase that is significantly similar to the ARF family of proteins. It plays a crucial role in intracellular membrane trafficking, particularly in post-Golgi membrane trafficking processes. ARFRP1 is primarily associated with the trans-Golgi compartment and the trans-Golgi network (TGN), where it functions as an essential regulatory factor for the targeting of Arl1 and GRIP domain-containing proteins, such as golgin-97 and golgin-245, onto Golgi membranes. Furthermore, ARFRP1 works in concert with Arl1 and GRIP proteins to facilitate the transport of the vesicular stomatitis virus G protein from the Golgi to the plasma membrane, as well as the retrograde transport of TGN38 and Shiga toxin from endosomes back to the TGN. This protein is also known to function upstream of ARL1 and ARL5, coordinating the recruitment of distinct tethering factors, golgins, and GARP, to the TGN. This mechanism is essential for the delivery of retrograde cargos to the TGN, making ARFRP1 a master regulator of retrograde-carrier tethering to the TGN.