1W7P

The crystal structure of endosomal complex ESCRT-II (VPS22/VPS25/VPS36)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.6 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.292 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Escrt-II, an Endosome-Associated Complex Required for Protein Sorting: Crystal Structure and Interactions with Escrt-III and Membranes

Teo, H.Perisic, O.Gonzalez, B.Williams, R.L.

(2004) Dev.Cell 7: 559

  • DOI: 10.1016/j.devcel.2004.09.003

  • PubMed Abstract: 
  • ESCRT-I, -II, and -III protein complexes are sequentially recruited to endosomal membranes, where they orchestrate protein sorting and MVB biogenesis. In addition, they play a critical role in retrovirus budding. Structural understanding of ESCRT int ...

    ESCRT-I, -II, and -III protein complexes are sequentially recruited to endosomal membranes, where they orchestrate protein sorting and MVB biogenesis. In addition, they play a critical role in retrovirus budding. Structural understanding of ESCRT interaction networks is largely lacking. The 3.6 A structure of the yeast ESCRT-II core presented here reveals a trilobal complex containing two copies of Vps25, one copy of Vps22, and the C-terminal region of Vps36. Unexpectedly, the entire ESCRT-II core consists of eight repeats of a common building block, a "winged helix" domain. Two PPXY-motifs from Vps25 are involved in contacts with Vps22 and Vps36, and their mutation leads to ESCRT-II disruption. We show that purified ESCRT-II binds directly to the Vps20 component of ESCRT-III. Surprisingly, this binding does not require the protruding N-terminal coiled-coil of Vps22. Vps25 is the chief subunit responsible for Vps20 recruitment. This interaction dramatically increases binding of both components to lipid vesicles in vitro.


    Related Citations: 
    • Structure of the Escrt-II Endosomal Trafficking Complex
      Hierro, A.,Sun, J.,Rusnak, A.S.,Kim, J.,Prag, G.,Emr, S.D.,Hurley, J.H.
      (2004) Nature 431: 221


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
VPS22, YPL002C
A
233Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SNF8 (VPS22)
Find proteins for Q12483 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: SNF8
Go to UniProtKB:  Q12483
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
VPS25, YJR102C
B, C
202Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: VPS25 (VPT25)
Find proteins for P47142 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: VPS25
Go to UniProtKB:  P47142
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
VPS36P, YLR417W
D
566Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: VPS36 (GRD12, VAC3, VPL11)
Find proteins for Q06696 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: VPS36
Go to UniProtKB:  Q06696
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.6 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.292 
  • Space Group: P 43 2 2
Unit Cell:
Length (Å)Angle (°)
a = 149.908α = 90.00
b = 149.908β = 90.00
c = 186.152γ = 90.00
Software Package:
Software NamePurpose
SnBphasing
SCALAdata scaling
autoSHARPphasing
REFMACrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-09-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.2: 2015-03-25
    Type: Data collection, Database references, Source and taxonomy
  • Version 1.3: 2017-07-05
    Type: Refinement description