Structural highlights
Evolutionary Conservation
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Publication Abstract from PubMed
The Golgi-associated retrograde protein (GARP) complex is a membrane-tethering complex that functions in traffic from endosomes to the trans-Golgi network. Here we present the structure of a C-terminal fragment of the Vps53 subunit, important for binding endosome-derived vesicles, at a resolution of 2.9 A. We show that the C terminus consists of two alpha-helical bundles arranged in tandem, and we identify a highly conserved surface patch, which may play a role in vesicle recognition. Mutations of the surface result in defects in membrane traffic. The fold of the Vps53 C terminus is strongly reminiscent of proteins that belong to three other tethering complexes--Dsl1, conserved oligomeric Golgi, and the exocyst--thought to share a common evolutionary origin. Thus, the structure of the Vps53 C terminus suggests that GARP belongs to this family of complexes.
Structure of a C-terminal fragment of its Vps53 subunit suggests similarity of Golgi-associated retrograde protein (GARP) complex to a family of tethering complexes.,Vasan N, Hutagalung A, Novick P, Reinisch KM Proc Natl Acad Sci U S A. 2010 Aug 10;107(32):14176-81. Epub 2010 Jul 26. PMID:20660722[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Vasan N, Hutagalung A, Novick P, Reinisch KM. Structure of a C-terminal fragment of its Vps53 subunit suggests similarity of Golgi-associated retrograde protein (GARP) complex to a family of tethering complexes. Proc Natl Acad Sci U S A. 2010 Aug 10;107(32):14176-81. Epub 2010 Jul 26. PMID:20660722 doi:10.1073/pnas.1009419107