1GL2

Crystal structure of an endosomal SNARE core complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.176 

wwPDB Validation 3D Report Full Report


This is version 2.0 of the entry. See complete history

Literature

Crystal Structure of the Endosomal Snare Complex Reveals Common Structural Principles of All Snares.

Antonin, W.Fasshauer, D.Becker, S.Jahn, R.Schneider, T.R.

(2001) Nat.Struct.Mol.Biol. 9: 107

  • DOI: 10.1038/nsb746

  • PubMed Abstract: 
  • SNARE proteins are crucial for intracellular membrane fusion in all eukaryotes. These proteins assemble into tight complexes that connect membranes and may induce fusion. The crystal structure of the neuronal core complex is represented by an unusual ...

    SNARE proteins are crucial for intracellular membrane fusion in all eukaryotes. These proteins assemble into tight complexes that connect membranes and may induce fusion. The crystal structure of the neuronal core complex is represented by an unusually long bundle of four alpha-helices connected by 16 layers of mostly hydrophobic amino acids. Here we report the 1.9 A resolution crystal structure of an endosomal SNARE core complex containing four SNAREs: syntaxin 7, syntaxin 8, vti1b and endobrevin/VAMP-8. Despite limited sequence homology, the helix alignment and the layer structure of the endosomal complex are remarkably similar to those of the neuronal complex. However, subtle variations are evident that characterize different SNARE subfamilies. We conclude that the structure of the SNARE core complex is an evolutionarily conserved hallmark of all SNARE complexes and is intimately associated with the general role of SNAREs in membrane fusion.


    Organizational Affiliation

    Department of Neurobiology and Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ENDOBREVIN
A
65Rattus norvegicusMutation(s): 0 
Gene Names: Vamp8
Find proteins for Q9WUF4 (Rattus norvegicus)
Go to UniProtKB:  Q9WUF4
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
SYNTAXIN 7
B
65Mus musculusMutation(s): 0 
Gene Names: Stx7 (Syn7)
Find proteins for O70439 (Mus musculus)
Go to UniProtKB:  O70439
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
VESICLE TRANSPORT V-SNARE PROTEIN VTI1-LIKE 1
C
65Mus musculusMutation(s): 0 
Gene Names: Vti1b (Vti1l1)
Find proteins for O88384 (Mus musculus)
Go to UniProtKB:  O88384
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
SYNTAXIN 8
D
65Rattus norvegicusMutation(s): 0 
Gene Names: Stx8
Find proteins for Q9Z2Q7 (Rattus norvegicus)
Go to UniProtKB:  Q9Z2Q7
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.176 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 50.700α = 90.00
b = 41.100β = 109.40
c = 51.500γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
EPMRphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-01-15
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 2.0: 2018-05-30
    Type: Atomic model, Data collection, Derived calculations, Structure summary