COG6 is a component of the conserved oligomeric Golgi (COG) complex, which is composed of eight different subunits organised in two tetramers (COG1-4 and COG5-8). COG is required for normal Golgi morphology and localisation [1,2] and it is involved in intra-Golgi protein trafficking. COG subunits belong to the CATCHR (complexes associated with tethering containing helical rods) family which includes subunits of the GARP/EARP, exocyst, and Dsl1 complexes, all evolutionary related and have a conserved structural fold consisting of alpha-helical bundles in tandem at the C-terminal and a coiled-coil region at the N-terminal [3,4]. This entry represents the N-terminal coiled-coil region of COG6.

1: Characterization of a mammalian Golgi-localized protein complex, COG, that is required for normal Golgi morphology and function. Ungar D, Oka T, Brittle EE, Vasile E, Lupashin VV, Chatterton JE, Heuser JE, Krieger M, Waters MG; J Cell Biol 2002;157:405-415. PMID:11980916

2: The Sec34/35 Golgi transport complex is related to the exocyst, defining a family of complexes involved in multiple steps of membrane traffic. Whyte JR, Munro S; Dev Cell 2001;1:527-537. PMID:11703943

3: Homology and Modular Evolution of CATCHR at the Origin of the Eukaryotic Endomembrane System. Santana-Molina C, Gutierrez F, Devos DP; Genome Biol Evol. 2021; [Epub ahead of print] PMID:34061181

4: Cryo-EM structure of the exocyst complex. Mei K, Li Y, Wang S, Shao G, Wang J, Ding Y, Luo G, Yue P, Liu JJ, Wang X, Dong MQ, Wang HW, Guo W; Nat Struct Mol Biol. 2018;25:139-146. PMID:29335562