3mhv

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Template:STRUCTURE 3mhv

Contents

Crystal Structure of Vps4 and Vta1

Template:ABSTRACT PUBMED 20696398

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] [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.[4] [5] [6] [7]

About this Structure

3mhv is a 2 chain structure with sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

  • 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
  1. ↑ 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
  2. ↑ 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
  3. ↑ 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
  4. ↑ Yeo SC, Xu L, Ren J, Boulton VJ, Wagle MD, Liu C, Ren G, Wong P, Zahn R, Sasajala P, Yang H, Piper RC, Munn AL. Vps20p and Vta1p interact with Vps4p and function in multivesicular body sorting and endosomal transport in Saccharomyces cerevisiae. J Cell Sci. 2003 Oct 1;116(Pt 19):3957-70. PMID:12953057 doi:http://dx.doi.org/10.1242/jcs.00751
  5. ↑ Shiflett SL, Ward DM, Huynh D, Vaughn MB, Simmons JC, Kaplan J. Characterization of Vta1p, a class E Vps protein in Saccharomyces cerevisiae. J Biol Chem. 2004 Mar 19;279(12):10982-90. Epub 2003 Dec 29. PMID:14701806 doi:10.1074/jbc.M312669200
  6. ↑ Azmi I, Davies B, Dimaano C, Payne J, Eckert D, Babst M, Katzmann DJ. Recycling of ESCRTs by the AAA-ATPase Vps4 is regulated by a conserved VSL region in Vta1. J Cell Biol. 2006 Feb 27;172(5):705-17. PMID:16505166 doi:jcb.200508166
  7. ↑ Lottridge JM, Flannery AR, Vincelli JL, Stevens TH. Vta1p and Vps46p regulate the membrane association and ATPase activity of Vps4p at the yeast multivesicular body. Proc Natl Acad Sci U S A. 2006 Apr 18;103(16):6202-7. Epub 2006 Apr 6. PMID:16601096 doi:0601712103

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