Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 79.30 kDa 
• Atom Count: 4921 
• Residue Count: 565 
• Unique protein chains: 1

3LH8

Crystal structure of mouse VPS26B in spacegroup P41 21 2

• DOI: 10.2210/pdb3LH8/pdb

• Classification: PROTEIN TRANSPORT
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2010-01-21 Released: 2010-02-02 
• Deposition Author(s): Collins, B., Shaw, D., Norwood, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.292 
• R-Value Work: 0.261 
• R-Value Observed: 0.263 

Literature

Assembly and solution structure of the core retromer protein complex.

Norwood, S.J., Shaw, D.J., Cowieson, N.P., Owen, D.J., Teasdale, R.D., Collins, B.M.

(2011) Traffic 12: 56-71

• PubMed: 20875039 
• DOI: 10.1111/j.1600-0854.2010.01124.x
• Primary Citation of Related Structures:  
  3LHA, 3LH8, 3LH9


• PubMed Abstract: 
  

Retromer is a peripheral membrane protein complex that has pleiotropic roles in endosomal membrane trafficking. The core of retromer possesses three subunits, VPS35, VPS29 and VPS26, that play different roles in binding to cargo, regulatory proteins and complex stabilization. We have performed an investigation of the thermodynamics of core retromer assembly using isothermal titration calorimetry (ITC) demonstrating that VPS35 acts as the central subunit to which VPS29 and VPS26 bind independently. Furthermore, we confirm that the conserved PRLYL motif of the large VPS35 subunit is critical for direct VPS26 interaction. Heat capacity measurements of VPS29 and VPS26 binding to VPS35 indicate extensive binding interfaces and suggest conformational alterations in VPS29 or VPS35 upon complex formation. Solution studies of the retromer core using small-angle X-ray scattering allow us to propose a model whereby VPS35 forms an extended platform with VPS29 and VPS26 bound at distal ends, with the potential for forming dimeric assemblies.

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Organizational Affiliation: 

Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland 4072, Australia.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Vacuolar protein sorting-associated protein 26B	A, B	340	Mus musculus	Mutation(s): 2  Gene Names: Vps26b
Find proteins for Q8C0E2 (Mus musculus) Explore Q8C0E2  Go to UniProtKB:  Q8C0E2

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.292 
• R-Value Work: 0.261 
• R-Value Observed: 0.263 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 118.157	α = 90
b = 118.157	β = 90
c = 193.815	γ = 90

Software Package:

Software Name	Purpose
PHASER	phasing
PHENIX	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-01-21 
• Released Date: 2010-02-02 
Deposition Author(s): Collins, B., Shaw, D., Norwood, S.

Revision History 

• Version 1.0: 2010-02-02
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance