Compartmental specificity of cellular membrane fusion encoded in SNARE proteins.
McNew, James A. *; Parlati, Francesco +; Fukuda, Ryouichi *+; Johnston, Robert J.; Paz, Keren; Paumet, Fabienne; Sollner, Thomas H.; Rothman, James E.
[Article]
Nature.
Insight: Vascular Biology. 407(6801):153-159, September 14, 2000.
(Format: HTML)
Membrane-enveloped vesicles travel among the compartments of the cytoplasm of eukaryotic cells, delivering their specific cargo to programmed locations by membrane fusion. The pairing of vesicle v-SNAREs (soluble N-ethylmaleimide-sensitive factor attachment protein receptors) with target membrane t-SNAREs has a central role in intracellular membrane fusion. We have tested all of the potential v-SNAREs encoded in the yeast genome for their capacity to trigger fusion by partnering with t-SNAREs that mark the Golgi, the vacuole and the plasma membrane. Here we find that, to a marked degree, the pattern of membrane flow in the cell is encoded and recapitulated by its isolated SNARE proteins, as predicted by the SNARE hypothesis.
(C) 2000 Nature Publishing Group