1IJF

Nucleotide exchange mechanisms in the eEF1A-eEF1Ba complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.250 
  • R-Value Observed: 0.250 

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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 Biol 8: 531-534

  • DOI: 10.1038/88598
  • Primary Citation of Related Structures:  
    1G7C, 1IJE, 1IJF

  • 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 determined the structures of the eEF1A-eEF1Balpha-GDP-Mg2+, eEF1A-eEF1Balpha-GDP and eEF1A-eEF1Balpha-GDPNP complexes at 3 ...

    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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
elongation factor 1-alphaA458Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for P02994 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P02994 
Go to UniProtKB:  P02994
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02994
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
elongation factor 1-betaB90Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: TEF5
UniProt
Find proteins for P32471 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P32471 
Go to UniProtKB:  P32471
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP32471
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDP
Query on GDP

Download Ideal Coordinates CCD File 
C [auth A]GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
D [auth B]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.250 
  • R-Value Observed: 0.250 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.247α = 90
b = 91.728β = 90
c = 92.713γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

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Ligand Structure Quality Assessment 



Entry History 

Deposition Data

Revision History  (Full details and data files)

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