2B7M

Crystal Structure of the S. cerevisiae Exocyst Component Exo70p


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.305 
  • R-Value Work: 0.254 
  • R-Value Observed: 0.254 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal Structure of the S.cerevisiae Exocyst Component Exo70p

Hamburger, Z.A.Hamburger, A.E.West, A.P.Weis, W.I.

(2006) J Mol Biol 356: 9-21

  • DOI: https://doi.org/10.1016/j.jmb.2005.09.099
  • Primary Citation of Related Structures:  
    2B7M

  • PubMed Abstract: 

    The exocyst is an evolutionarily conserved multiprotein complex required for the targeting and docking of post-Golgi vesicles to the plasma membrane. Through its interactions with a variety of proteins, including small GTPases, the exocyst is thought to integrate signals from the cell and signal that vesicles arriving at the plasma membrane are ready for fusion. Here we describe the three-dimensional crystal structure of one of the components of the exocyst, Exo70p, from Saccharomyces cerevisiae at 3.5A resolution. Exo70p binds the small GTPase Rho3p in a GTP-dependent manner with an equilibrium dissociation constant of approximately 70 microM. Exo70p is an extended rod approximately 155 angstroms in length composed principally of alpha helices, and is a novel fold. The structure provides a first view of the Exo70 protein family and provides a framework to study the molecular function of this exocyst component.


  • Organizational Affiliation

    Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305-5126, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Exocyst complex component EXO70
A, B, C, D
566Saccharomyces cerevisiaeMutation(s): 13 
Gene Names: EXO70
UniProt
Find proteins for P19658 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P19658 
Go to UniProtKB:  P19658
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP19658
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.305 
  • R-Value Work: 0.254 
  • R-Value Observed: 0.254 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 415.729α = 90
b = 55.129β = 104.05
c = 132.93γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-11-15
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-11-06
    Changes: Data collection, Database references, Derived calculations, Structure summary