Premium
Membrane Tethering and Fusion in the Secretory and Endocytic Pathways
Author(s) -
Waters M. Gerard,
Hughson Frederick M.
Publication year - 2000
Publication title -
traffic
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.677
H-Index - 130
eISSN - 1600-0854
pISSN - 1398-9219
DOI - 10.1034/j.1600-0854.2000.010802.x
Subject(s) - rab , tethering , biology , endocytic cycle , microbiology and biotechnology , lipid bilayer fusion , dock , secretory pathway , transport protein , vesicular transport proteins , exocytosis , gtpase , endosome , intracellular , endocytosis , membrane , biochemistry , golgi apparatus , cell , endoplasmic reticulum , vacuolar protein sorting
Studies of intracellular trafficking over the past decade or so have led to striking advances in our understanding of the molecular processes by which transport intermediates dock and fuse. SNARE proteins play a central role, assembling into complexes that bridge membranes and may catalyze membrane fusion directly. In general, different SNARE proteins operate in different intracellular trafficking pathways, so recent reports that SNARE assembly in vitro is promiscuous have come as something of a surprise. We propose a model in which proper SNARE assembly is under kinetic control, orchestrated by members of the Sec1 protein family, small GTP‐binding Rab proteins, and a diverse assortment of tethering proteins.