This domain forms part of the TRAPP complex for mediating vesicle docking and fusion in the Golgi apparatus. The fungal version is referred to as Trs130, and an alternative vertebrate alias is TMEM1 [1,2].

1: TRAPP, a highly conserved novel complex on the cis-Golgi that mediates vesicle docking and fusion. Sacher M, Jiang Y, Barrowman J, Scarpa A, Burston J, Zhang L, Schieltz D, Yates JR 3rd, Abeliovich H, Ferro-Novick S; EMBO J 1998;17:2494-2503. PMID:9564032

2: TRAPP I implicated in the specificity of tethering in ER-to-Golgi transport. Sacher M, Barrowman J, Wang W, Horecka J, Zhang Y, Pypaert M, Ferro-Novick S; Mol Cell. 2001;7:433-442. PMID:11239471