3CUQ

Integrated structural and functional model of the human ESCRT-II complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.61 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.241 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Integrated structural model and membrane targeting mechanism of the human ESCRT-II complex

Im, Y.J., Hurley, J.H.

(2008) Dev Cell 14: 902-913

  • DOI: 10.1016/j.devcel.2008.04.004
  • Primary Citation of Related Structures:  
    3CUQ, 2ZME

  • PubMed Abstract: 

    • ESCRT-II plays a pivotal role in receptor downregulation and multivesicular body biogenesis and is conserved from yeast to humans. The crystal structures of two human ESCRT-II complex structures have been determined at 2.6 and 2.9 A resolution, respectively ...

    ESCRT-II plays a pivotal role in receptor downregulation and multivesicular body biogenesis and is conserved from yeast to humans. The crystal structures of two human ESCRT-II complex structures have been determined at 2.6 and 2.9 A resolution, respectively. The complex has three lobes and contains one copy each of VPS22 and VPS36 and two copies of VPS25. The structure reveals a dynamic helical domain to which both the VPS22 and VPS36 subunits contribute that connects the GLUE domain to the rest of the ESCRT-II core. Hydrodynamic analysis shows that intact ESCRT-II has a compact, closed conformation. ESCRT-II binds to the ESCRT-I VPS28 C-terminal domain subunit through a helix immediately C-terminal to the VPS36-GLUE domain. ESCRT-II is targeted to endosomal membranes by the lipid-binding activities of both the Vps36 GLUE domain and the first helix of Vps22. These data provide a unifying structural and functional framework for the ESCRT-II complex.

    Organizational Affiliation: 

    Laboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD 20892, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Vacuolar-sorting protein SNF8A234Homo sapiensMutation(s): 0 
Gene Names: SNF8, EAP30
Find proteins for Q96H20 (Homo sapiens)
Explore Q96H20 
Go to UniProtKB:  Q96H20
NIH Common Fund Data Resources
PHAROS:  Q96H20
GTEx:  ENSG00000159210
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Vacuolar protein-sorting-associated protein 36B218Homo sapiensMutation(s): 0 
Gene Names: VPS36, C13orf9, EAP45, CGI-145
Find proteins for Q86VN1 (Homo sapiens)
Explore Q86VN1 
Go to UniProtKB:  Q86VN1
NIH Common Fund Data Resources
PHAROS:  Q86VN1
GTEx:  ENSG00000136100
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Vacuolar protein-sorting-associated protein 25C, D176Homo sapiensMutation(s): 0 
Gene Names: VPS25, DERP9, EAP20
Find proteins for Q9BRG1 (Homo sapiens)
Explore Q9BRG1 
Go to UniProtKB:  Q9BRG1
NIH Common Fund Data Resources
PHAROS:  Q9BRG1
GTEx:  ENSG00000131475
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.61 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.241 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.162α = 90
b = 89.153β = 101.52
c = 91.437γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
SOLVEphasing

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2008-04-16 
  • Released Date: 2008-11-04 
    • Deposition Author(s): Im, Y.J., Hurley, J.H.

Revision History  (Full details and data files)

  • Version 1.0: 2008-11-04
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Refinement description, Version format compliance