2EBO

CORE STRUCTURE OF GP2 FROM EBOLA VIRUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Core structure of the envelope glycoprotein GP2 from Ebola virus at 1.9-A resolution.

Malashkevich, V.N.Schneider, B.J.McNally, M.L.Milhollen, M.A.Pang, J.X.Kim, P.S.

(1999) Proc.Natl.Acad.Sci.USA 96: 2662-2667


  • PubMed Abstract: 
  • Ebola virions contain a surface transmembrane glycoprotein (GP) that is responsible for binding to target cells and subsequent fusion of the viral and host-cell membranes. GP is expressed as a single-chain precursor that is posttranslationally proces ...

    Ebola virions contain a surface transmembrane glycoprotein (GP) that is responsible for binding to target cells and subsequent fusion of the viral and host-cell membranes. GP is expressed as a single-chain precursor that is posttranslationally processed into the disulfide-linked fragments GP1 and GP2. The GP2 subunit is thought to mediate membrane fusion. A soluble fragment of the GP2 ectodomain, lacking the fusion-peptide region and the transmembrane helix, folds into a stable, highly helical structure in aqueous solution. Limited proteolysis studies identify a stable core of the GP2 ectodomain. This 74-residue core, denoted Ebo-74, was crystallized, and its x-ray structure was determined at 1.9-A resolution. Ebo-74 forms a trimer in which a long, central three-stranded coiled coil is surrounded by shorter C-terminal helices that are packed in an antiparallel orientation into hydrophobic grooves on the surface of the coiled coil. Our results confirm the previously anticipated structural similarity between the Ebola GP2 ectodomain and the core of the transmembrane subunit from oncogenic retroviruses. The Ebo-74 structure likely represents the fusion-active conformation of the protein, and its overall architecture resembles several other viral membrane-fusion proteins, including those from HIV and influenza.


    Related Citations: 
    • Core Structure of Gp41 from the HIV Envelope Glycoprotein
      Chan, D.C.,Fass, D.,Berger, J.M.,Kim, P.S.
      (1997) Cell 89: 263
    • Crystal Structure of the Simian Immunodeficiency Virus (Siv) Gp41 Core: Conserved Helical Interactions Underlie the Broad Inhibitory Activity of Gp41 Peptides
      Malashkevich, V.N.,Chan, D.C.,Chutkowski, C.T.,Kim, P.S.
      (1998) Proc.Natl.Acad.Sci.USA 95: 9134


    Organizational Affiliation

    Howard Hughes Medical Institute, Whitehead Institute for Biomedical Research, Department of Biology, Massachusetts Institute of Technology, Nine Cambridge Center, Cambridge, MA 02142, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
EBOLA VIRUS ENVELOPE GLYCOPROTEIN
A, B, C
74Zaire ebolavirus (strain Mayinga-76)Mutation(s): 1 
Gene Names: GP
Find proteins for Q05320 (Zaire ebolavirus (strain Mayinga-76))
Go to UniProtKB:  Q05320
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.205 
  • Space Group: P 62
Unit Cell:
Length (Å)Angle (°)
a = 75.660α = 90.00
b = 75.660β = 90.00
c = 67.930γ = 120.00
Software Package:
Software NamePurpose
CNSphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-05-18
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-03-14
    Type: Database references