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5xmi

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Revision as of 20:10, 6 March 2020

Cryo-EM Structure of the ATP-bound VPS4 mutant-E233Q hexamer (masked)

5xmi, resolution 3.90Å

Structural highlights

5xmi is a 6 chain structure with sequence from Baker's yeast. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	VPS4, CSC1, DID6, END13, GRD13, VPL4, VPT10, YPR173C, P9705.10 (Baker's yeast)
Experimental data:	Check to display Experimental Data
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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]

Publication Abstract from PubMed

The cellular ESCRT-III (endosomal sorting complex required for transport-III) and Vps4 (vacuolar protein sorting 4) comprise a common machinery that mediates a variety of membrane remodelling events. Vps4 is essential for the machinery function by using the energy from ATP hydrolysis to disassemble the ESCRT-III polymer into individual proteins. Here, we report the structures of the ATP-bound Vps4E233Q hexamer and its complex with the cofactor Vta1 (vps twenty associated 1) at resolutions of 3.9 and 4.2 A, respectively, determined by electron cryo-microscopy. Six Vps4E233Q subunits in both assemblies exhibit a spiral-shaped ring-like arrangement. Locating at the periphery of the hexameric ring, Vta1 dimer bridges two adjacent Vps4 subunits by two different interaction modes to promote the formation of the active Vps4 hexamer during ESCRT-III filament disassembly. The structural findings, together with the structure-guided biochemical and single-molecule analyses, provide important insights into the process of the ESCRT-III polymer disassembly by Vps4.

Cryo-EM structures of the ATP-bound Vps4E233Q hexamer and its complex with Vta1 at near-atomic resolution.,Sun S, Li L, Yang F, Wang X, Fan F, Yang M, Chen C, Li X, Wang HW, Sui SF Nat Commun. 2017 Jul 17;8:16064. doi: 10.1038/ncomms16064. PMID:28714467^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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
↑ Sun S, Li L, Yang F, Wang X, Fan F, Yang M, Chen C, Li X, Wang HW, Sui SF. Cryo-EM structures of the ATP-bound Vps4E233Q hexamer and its complex with Vta1 at near-atomic resolution. Nat Commun. 2017 Jul 17;8:16064. doi: 10.1038/ncomms16064. PMID:28714467 doi:http://dx.doi.org/10.1038/ncomms16064

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5xmi"

@@ Line 1: / Line 1: @@
 ==Cryo-EM Structure of the ATP-bound VPS4 mutant-E233Q hexamer (masked)==
-<StructureSection load='5xmi' size='340' side='right' caption='[[5xmi]], [[Resolution|resolution]] 3.90&Aring;' scene=''>
+<SX load='5xmi' size='340' side='right' viewer='molstar' caption='[[5xmi]], [[Resolution|resolution]] 3.90&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[5xmi]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Baker's_yeast Baker's yeast]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5XMI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5XMI FirstGlance]. <br>
@@ Line 19: / Line 19: @@
 </div>
 <div class="pdbe-citations 5xmi" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Vacuolar protein sorting-associated protein|Vacuolar protein sorting-associated protein]]
 == References ==
 <references/>
 __TOC__
-</StructureSection>
+</SX>
 [[Category: Baker's yeast]]
+[[Category: Large Structures]]
 [[Category: Fan, F]]
 [[Category: Li, L]]

5xmi

From Proteopedia

Revision as of 20:10, 6 March 2020

Cryo-EM Structure of the ATP-bound VPS4 mutant-E233Q hexamer (masked)

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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