4C0S

Mammalian translation elongation factor eEF1A2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.703 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Mammalian Translation Elongation Factor Eef1A2: X-Ray Structure and New Features of Gdp/GTP Exchange Mechanism in Higher Eukaryotes

Crepin, T.Mccarthy, A.Negrutskii, A.Shalak, V.F.Tukalo, V.Vlasenko, D.O.Yaremchuk, A.D.

(2014) Nucleic Acids Res. 42: 12939

  • DOI: 10.1093/nar/gku974

  • PubMed Abstract: 
  • Eukaryotic elongation factor eEF1A transits between the GTP- and GDP-bound conformations during the ribosomal polypeptide chain elongation. eEF1A*GTP establishes a complex with the aminoacyl-tRNA in the A site of the 80S ribosome. Correct codon-antic ...

    Eukaryotic elongation factor eEF1A transits between the GTP- and GDP-bound conformations during the ribosomal polypeptide chain elongation. eEF1A*GTP establishes a complex with the aminoacyl-tRNA in the A site of the 80S ribosome. Correct codon-anticodon recognition triggers GTP hydrolysis, with subsequent dissociation of eEF1A*GDP from the ribosome. The structures of both the 'GTP'- and 'GDP'-bound conformations of eEF1A are unknown. Thus, the eEF1A-related ribosomal mechanisms were anticipated only by analogy with the bacterial homolog EF-Tu. Here, we report the first crystal structure of the mammalian eEF1A2*GDP complex which indicates major differences in the organization of the nucleotide-binding domain and intramolecular movements of eEF1A compared to EF-Tu. Our results explain the nucleotide exchange mechanism in the mammalian eEF1A and suggest that the first step of eEF1A*GDP dissociation from the 80S ribosome is the rotation of the nucleotide-binding domain observed after GTP hydrolysis.


    Organizational Affiliation

    University of Grenoble Alpes, UVHCI, F-38000 Grenoble, France CNRS, UVHCI, F-38000 Grenoble, France Unit for Virus Host-Cell Interactions, University of Grenoble Alpes-EMBL-CNRS, 71 avenue des Martyrs, 38042 France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ELONGATION FACTOR 1-ALPHA 2
A, B
463Oryctolagus cuniculusMutation(s): 0 
Gene Names: EEF1A2
Find proteins for Q71V39 (Oryctolagus cuniculus)
Go to Gene View: EEF1A2
Go to UniProtKB:  Q71V39
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDP
Query on GDP

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

Download SDF File 
Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
A, B
L-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
A, B
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.703 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.202 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 135.370α = 90.00
b = 135.370β = 90.00
c = 304.620γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-08-27
    Type: Initial release
  • Version 1.1: 2014-10-29
    Type: Database references
  • Version 1.2: 2014-11-26
    Type: Database references
  • Version 1.3: 2017-01-25
    Type: Data collection