Structural highlights
Function
[VPS53_YEAST] Involved in retrograde transport from early and late endosomes to late Golgi by linking the vesicle through the t-SNARE TGL1 to the Golgi, leading to the membrane fusion between late Golgi and endosomal vesicles.[1] [2] [3] [4] [5]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
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[6]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Conibear E, Stevens TH. Vps52p, Vps53p, and Vps54p form a novel multisubunit complex required for protein sorting at the yeast late Golgi. Mol Biol Cell. 2000 Jan;11(1):305-23. PMID:10637310
- ↑ Siniossoglou S, Pelham HR. An effector of Ypt6p binds the SNARE Tlg1p and mediates selective fusion of vesicles with late Golgi membranes. EMBO J. 2001 Nov 1;20(21):5991-8. PMID:11689439 doi:10.1093/emboj/20.21.5991
- ↑ Siniossoglou S, Pelham HR. Vps51p links the VFT complex to the SNARE Tlg1p. J Biol Chem. 2002 Dec 13;277(50):48318-24. Epub 2002 Oct 10. PMID:12377769 doi:10.1074/jbc.M209428200
- ↑ Reggiori F, Wang CW, Stromhaug PE, Shintani T, Klionsky DJ. Vps51 is part of the yeast Vps fifty-three tethering complex essential for retrograde traffic from the early endosome and Cvt vesicle completion. J Biol Chem. 2003 Feb 14;278(7):5009-20. Epub 2002 Nov 20. PMID:12446664 doi:10.1074/jbc.M210436200
- ↑ Conibear E, Cleck JN, Stevens TH. Vps51p mediates the association of the GARP (Vps52/53/54) complex with the late Golgi t-SNARE Tlg1p. Mol Biol Cell. 2003 Apr;14(4):1610-23. PMID:12686613 doi:10.1091/mbc.E02-10-0654
- ↑ 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
