This family consists of several eukaryotic GPP34 like proteins. GPP34 localises to the Golgi complex and is conserved from yeast to humans. The cytosolic-ally exposed location of GPP34 predict a role for a novel coat protein in Golgi trafficking [1].

1: Proteomics characterization of abundant Golgi membrane proteins. Bell AW, Ward MA, Blackstock WP, Freeman HN, Choudhary JS, Lewis AP, Chotai D, Fazel A, Gushue JN, Paiement J, Palcy S, Chevet E, Lafreniere-Roula M, Solari R, Thomas DY, Rowley A, Bergeron JJ; J Biol Chem 2001;276:5152-5165. PMID:11042173