1IJF

Nucleotide exchange mechanisms in the eEF1A-eEF1Ba complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.250 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structures of nucleotide exchange intermediates in the eEF1A-eEF1Balpha complex.

Andersen, G.R.Valente, L.Pedersen, L.Kinzy, T.G.Nyborg, J.

(2001) Nat.Struct.Mol.Biol. 8: 531-534

  • DOI: 10.1038/88598
  • Primary Citation of Related Structures:  1G7C, 1IJE
  • Also Cited By: 2B7B, 2B7C

  • PubMed Abstract: 
  • In the elongation cycle of protein biosynthesis, the nucleotide exchange factor eEF1Balpha catalyzes the exchange of GDP bound to the G-protein, eEF1A, for GTP. To obtain more information about the recently solved eEF1A-eEF1Balpha structure, we deter ...

    In the elongation cycle of protein biosynthesis, the nucleotide exchange factor eEF1Balpha catalyzes the exchange of GDP bound to the G-protein, eEF1A, for GTP. To obtain more information about the recently solved eEF1A-eEF1Balpha structure, we determined the structures of the eEF1A-eEF1Balpha-GDP-Mg2+, eEF1A-eEF1Balpha-GDP and eEF1A-eEF1Balpha-GDPNP complexes at 3.0, 2.4 and 2.05 A resolution, respectively. Minor changes, specifically around the nucleotide binding site, in eEF1A and eEF1Balpha are consistent with in vivo data. The base, sugar and alpha-phosphate bind as in other known nucleotide G-protein complexes, whereas the beta- and gamma-phosphates are disordered. A mutation of Lys 205 in eEF1Balpha that inserts into the Mg2+ binding site of eEF1A is lethal. This together with the structures emphasizes the essential role of Mg2+ in nucleotide exchange in the eEF1A-eEF1Balpha complex.


    Related Citations: 
    • Structural Basis for Nucleotide Exchange and Competition with tRNA in the Yeast Elongation Factor Complex eEF1A:eEF1Balpha
      Andersen, G.R.,Pedersen, L.,Valente, L.,Chatterjee, I.I.,Kinzy, T.G.,Kjeldgaard, M.,Nyborg, J.
      (2000) Mol.Cell 6: 1261


    Organizational Affiliation

    Institute of Molecular and Structural Biology, University of Aarhus, Gustav Wieds Vej 10C, DK-8000, Aarhus C, Denmark. grand@imsb.au.dk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
elongation factor 1-alpha
A
458Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: TEF1, TEF2
Find proteins for P02994 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P02994
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
elongation factor 1-beta
B
90Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: EFB1 (TEF5)
Find proteins for P32471 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P32471
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDP
Query on GDP

Download SDF File 
Download CCD File 
A
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.250 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 64.247α = 90.00
b = 91.728β = 90.00
c = 92.713γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSrefinement
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-05-09
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance