2ZME

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.313 
  • R-Value Work: 0.214 

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

  • 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, respe ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Vacuolar-sorting protein SNF8
A
258Homo sapiensGene Names: SNF8 (EAP30)
Find proteins for Q96H20 (Homo sapiens)
Go to Gene View: SNF8
Go to UniProtKB:  Q96H20
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Vacuolar protein-sorting-associated protein 36
B
238Homo sapiensGene Names: VPS36 (C13orf9, EAP45)
Find proteins for Q86VN1 (Homo sapiens)
Go to Gene View: VPS36
Go to UniProtKB:  Q86VN1
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Vacuolar protein-sorting-associated protein 25
C, D
102Homo sapiensGene Names: VPS25 (DERP9, EAP20)
Find proteins for Q9BRG1 (Homo sapiens)
Go to Gene View: VPS25
Go to UniProtKB:  Q9BRG1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.313 
  • R-Value Work: 0.214 
  • Space Group: P 32 1 2
Unit Cell:
Length (Å)Angle (°)
a = 81.480α = 90.00
b = 81.480β = 90.00
c = 226.244γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data collection
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2008-04-17 
  • Released Date: 2008-11-04 
  • Deposition Author(s): Im, Y.J., Hurley, J.H.

Revision History 

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