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| | ==Crystal Structure of Vps4 and Vta1== | | ==Crystal Structure of Vps4 and Vta1== |
| - | <StructureSection load='3mhv' size='340' side='right' caption='[[3mhv]], [[Resolution|resolution]] 3.10Å' scene=''> | + | <StructureSection load='3mhv' size='340' side='right'caption='[[3mhv]], [[Resolution|resolution]] 3.10Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3mhv]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3MHV OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3MHV FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3mhv]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3MHV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3MHV FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">VPS4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), VTA1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.1Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3mhv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3mhv OCA], [http://pdbe.org/3mhv PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3mhv RCSB], [http://www.ebi.ac.uk/pdbsum/3mhv PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3mhv ProSAT]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3mhv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3mhv OCA], [https://pdbe.org/3mhv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3mhv RCSB], [https://www.ebi.ac.uk/pdbsum/3mhv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3mhv ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/VPS4_YEAST VPS4_YEAST]] Involved in the transport of biosynthetic membrane proteins from the prevacuolar/endosomal compartment to the vacuole. Required for multivesicular body (MVB) protein sorting. Catalyzes the ATP-dependent dissociation of class E VPS proteins from endosomal membranes, such as the disassembly of the ESCRT-III complex.<ref>PMID:11329380</ref> <ref>PMID:9155008</ref> <ref>PMID:9606181</ref> [[http://www.uniprot.org/uniprot/VTA1_YEAST VTA1_YEAST]] Has a role in the formation of the multivesicular body (MVB). Required for the sorting of lipids to form intralumenal vesicles and for fluid-phase transport to the vacuole. Required for sorting the plasma membrane proteins STE2 and STE3 into the MVB. Acts a cofactor of VSP4, promotes the oligomerization of VPS4 and stimulates its ATPase activity by 6- to 8-fold.<ref>PMID:12953057</ref> <ref>PMID:14701806</ref> <ref>PMID:16505166</ref> <ref>PMID:16601096</ref> | + | [https://www.uniprot.org/uniprot/VPS4_YEAST VPS4_YEAST] Involved in the transport of biosynthetic membrane proteins from the prevacuolar/endosomal compartment to the vacuole. Required for multivesicular body (MVB) protein sorting. Catalyzes the ATP-dependent dissociation of class E VPS proteins from endosomal membranes, such as the disassembly of the ESCRT-III complex.<ref>PMID:11329380</ref> <ref>PMID:9155008</ref> <ref>PMID:9606181</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | ==See Also== | | ==See Also== |
| - | *[[Vacuolar protein sorting-associated protein|Vacuolar protein sorting-associated protein]] | + | *[[Vacuolar protein sorting-associated protein 3D structures|Vacuolar protein sorting-associated protein 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Atcc 18824]] | + | [[Category: Large Structures]] |
| - | [[Category: Hurley, J H]] | + | [[Category: Saccharomyces cerevisiae]] |
| - | [[Category: Yang, D]] | + | [[Category: Hurley JH]] |
| - | [[Category: Aaa]] | + | [[Category: Yang D]] |
| - | [[Category: Atpase]]
| + | |
| - | [[Category: Escrt]]
| + | |
| - | [[Category: Mvb]]
| + | |
| - | [[Category: Protein transport]]
| + | |
| - | [[Category: Sorting]]
| + | |
| - | [[Category: Vps4]]
| + | |
| - | [[Category: Vta1]]
| + | |
| Structural highlights
Function
VPS4_YEAST Involved in the transport of biosynthetic membrane proteins from the prevacuolar/endosomal compartment to the vacuole. Required for multivesicular body (MVB) protein sorting. Catalyzes the ATP-dependent dissociation of class E VPS proteins from endosomal membranes, such as the disassembly of the ESCRT-III complex.[1] [2] [3]
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 ESCRT complexes are required for multivesicular body biogenesis, macroautophagy, cytokinesis, and the budding of HIV-1. The final step in the ESCRT cycle is the disassembly of the ESCRT-III lattice by the AAA+ ATPase Vps4. Vps4 assembles on its membrane-bound ESCRT-III substrate with its cofactor, Vta1. The crystal structure of the dimeric VSL domain of yeast Vta1 with the small ATPase and the betadomains of Vps4 was determined. Residues involved in structural interactions are conserved and are required for binding in vitro and for Cps1 sorting in vivo. Modeling of the Vta1 complex in complex with the lower hexameric ring of Vps4 indicates that the two-fold axis of the Vta1 VSL domain is parallel to within approximately 20 degrees of the six-fold axis of the hexamer. This suggests that Vta1 might not crosslink the two hexameric rings of Vps4, but rather stabilizes an array of Vps4-Vta1 complexes for ESCRT-III disassembly.
Structural role of the Vps4-Vta1 interface in ESCRT-III recycling.,Yang D, Hurley JH Structure. 2010 Aug 11;18(8):976-84. PMID:20696398[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Zahn R, Stevenson BJ, Schroder-Kohne S, Zanolari B, Riezman H, Munn AL. End13p/Vps4p is required for efficient transport from early to late endosomes in Saccharomyces cerevisiae. J Cell Sci. 2001 May;114(Pt 10):1935-47. PMID:11329380
- ↑ Babst M, Sato TK, Banta LM, Emr SD. Endosomal transport function in yeast requires a novel AAA-type ATPase, Vps4p. EMBO J. 1997 Apr 15;16(8):1820-31. PMID:9155008 doi:10.1093/emboj/16.8.1820
- ↑ Babst M, Wendland B, Estepa EJ, Emr SD. The Vps4p AAA ATPase regulates membrane association of a Vps protein complex required for normal endosome function. EMBO J. 1998 Jun 1;17(11):2982-93. PMID:9606181 doi:10.1093/emboj/17.11.2982
- ↑ Yang D, Hurley JH. Structural role of the Vps4-Vta1 interface in ESCRT-III recycling. Structure. 2010 Aug 11;18(8):976-84. PMID:20696398 doi:10.1016/j.str.2010.04.014
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