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© The Rockefeller University Press, 0021-9525/1997//1017 $5.00
The Journal of Cell Biology, Volume 137, Number 5, , 1997 1017-1028


Article

ERS-24, a Mammalian v-SNARE Implicated in Vesicle Traffic between the ER and the Golgi



Inbok Paek*,§, Lelio Orci||, Mariella Ravazzola||, Hediye Erdjument-Bromage{ddagger}, Mylene Amherdt||, Paul Tempst{ddagger}, Thomas H. Söllner*, and James E. Rothman*

* Cellular Biochemistry and Biophysics Program, {ddagger} Molecular Biology Program, § Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York 10021; and || Institute of Histology and Embryology, Department of Morphology, University of Geneva Medical School, 1211 Geneva 4, Switzerland

We report the identification and characterization of ERS-24 (Endoplasmic Reticulum SNARE of 24 kD), a new mammalian v-SNARE implicated in vesicular transport between the ER and the Golgi. ERS24 is incorporated into 20S docking and fusion particles and disassembles from this complex in an ATP-dependent manner. ERS-24 has significant sequence homology to Sec22p, a v-SNARE in Saccharomyces cerevisiae required for transport between the ER and the Golgi. ERS-24 is localized to the ER and to the Golgi, and it is enriched in transport vesicles associated with these organelles.


1. Abbreviations used in this paper: GST, glutathione-S-transferase; NSF, N-ethylmaleimide–sensitive factor; SNAP, soluble NSF attachment protein; SNARE, SNAP receptor.

Please address all correspondence to James E. Rothman, Cellular Biochemistry and Biophysics Program, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, Box 251, New York 10021. Tel.: (212) 6398598. Fax: (212) 717-3604.



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