1W7P

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

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.60 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.292 
  • R-Value Observed: 0.294 

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
  • Primary Citation of Related Structures:  
    1W7P

  • 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 interaction networks is largely lacking ...

    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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
VPS22, YPL002CA233Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for Q12483 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q12483 
Go to UniProtKB:  Q12483
Entity Groups  
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UniProt GroupQ12483
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
VPS25, YJR102CB, C202Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for P47142 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P47142 
Go to UniProtKB:  P47142
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UniProt GroupP47142
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
VPS36P, YLR417WD566Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for Q06696 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q06696 
Go to UniProtKB:  Q06696
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ06696
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.60 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.292 
  • R-Value Observed: 0.294 
  • Space Group: P 43 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 149.908α = 90
b = 149.908β = 90
c = 186.152γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
SnBphasing
autoSHARPphasing
REFMACrefinement

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

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