2BV3

Crystal structure of a mutant elongation factor G trapped with a GTP analogue


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.205 

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Literature

Crystal Structure of a Mutant Elongation Factor G Trapped with a GTP Analogue.

Hansson, S.Singh, R.Gudkov, A.T.Liljas, A.Logan, D.T.

(2005) FEBS Lett 579: 4492

  • DOI: 10.1016/j.febslet.2005.07.016
  • Primary Citation of Related Structures:  
    2BV3

  • PubMed Abstract: 
  • Elongation factor G (EF-G) is a G protein factor that catalyzes the translocation step in protein synthesis on the ribosome. Its GTP conformation in the absence of the ribosome is currently unknown. We present the structure of a mutant EF-G (T84A) in complex with the non-hydrolysable GTP analogue GDPNP ...

    Elongation factor G (EF-G) is a G protein factor that catalyzes the translocation step in protein synthesis on the ribosome. Its GTP conformation in the absence of the ribosome is currently unknown. We present the structure of a mutant EF-G (T84A) in complex with the non-hydrolysable GTP analogue GDPNP. The crystal structure provides a first insight into conformational changes induced in EF-G by GTP. Comparison of this structure with that of EF-G in complex with GDP suggests that the GTP and GDP conformations in solution are very similar and that the major contribution to the active GTPase conformation, which is quite different, therefore comes from its interaction with the ribosome.


    Related Citations: 
    • The Crystal Structure of Elongation Factor G Complexed with Gdp, at 2.7 A Resolution
      Czworkowski, J., Wang, J., Steitz, T.A., Moore, P.B.
      (1994) EMBO J 13: 3661
    • Three-Dimensional Structure of the Ribosomal Translocase: Elongation Factor G from Thermus Thermophilus
      Aevarsson, A., Brazhnikov, E., Garber, M., Zheltonosova, J., Chirgadze, Y., Al-Karadaghi, S., Svensson, L.A., Liljas, A.
      (1994) EMBO J 13: 3669
    • The Structure of Elongation Factor G in Complex with Gdp: Conformational Flexibility and Nucleotide Exchange
      Al-Karadaghi, S., Aevarsson, A., Garber, M., Zheltonosova, J., Liljas, A.
      (1996) Structure 4: 555
    • Structure of a Mutant EF-G Reveals Domain III and Possibly the Fusidic Acid Binding Site
      Laurberg, M., Kristensen, O., Martemyanov, K., Gudkov, A.T., Nagaev, I., Hughes, D., Liljas, A.
      (2000) J Mol Biol 303: 593
    • Mutations in the G-Domain of Elongation Factor G from Thermus Thermophilus Affect Both its Interaction with GTP and Fusidic Acid.
      Martemyanov, K.A., Liljas, A., Yarunin, A.S., Gudkov, A.T.
      (2001) J Biol Chem 276: 28774
    • Structural Insights Into Fusidic Acid Resistance and Sensitivity in EF-G
      Hansson, S., Singh, R., Gudkov, A.T., Liljas, A., Logan, D.T.
      (2005) J Mol Biol 348: 939

    Organizational Affiliation

    Department of Molecular Biophysics, Lund University, Box 124, S-211 00 Lund, Sweden.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ELONGATION FACTOR GA691Thermus thermophilusMutation(s): 1 
Gene Names: fusAfus
UniProt
Find proteins for P13551 (Thermus thermophilus)
Explore P13551 
Go to UniProtKB:  P13551
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GNP (Subject of Investigation/LOI)
Query on GNP

Download Ideal Coordinates CCD File 
B [auth A]PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
C10 H17 N6 O13 P3
UQABYHGXWYXDTK-UUOKFMHZSA-N
 Ligand Interaction
MG
Query on MG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.205 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.99α = 90
b = 103.34β = 90
c = 118.91γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-08-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2018-01-17
    Changes: Data collection