1TUI

INTACT ELONGATION FACTOR TU IN COMPLEX WITH GDP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.300 
  • R-Value Work: 0.235 

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This is version 1.2 of the entry. See complete history


Literature

Helix unwinding in the effector region of elongation factor EF-Tu-GDP.

Polekhina, G.Thirup, S.Kjeldgaard, M.Nissen, P.Lippmann, C.Nyborg, J.

(1996) Structure 4: 1141-1151

  • DOI: 10.1016/s0969-2126(96)00122-0
  • Primary Citation of Related Structures:  
    1TUI

  • PubMed Abstract: 
  • Elongation factor Tu (EF-Tu) in its GTP conformation is a carrier of aminoacylated tRNAs (aa-tRNAs) to the ribosomal A site during protein biosynthesis. The ribosome triggers GTP hydrolysis, resulting in the dissociation of EF-Tu-GDP from the ribosome. The affinity of EF-Tu for other molecules involved in this process, some of which are unknown, is regulated by two regions (Switch I and Switch II) that have different conformations in the GTP and GDP forms ...

    Elongation factor Tu (EF-Tu) in its GTP conformation is a carrier of aminoacylated tRNAs (aa-tRNAs) to the ribosomal A site during protein biosynthesis. The ribosome triggers GTP hydrolysis, resulting in the dissociation of EF-Tu-GDP from the ribosome. The affinity of EF-Tu for other molecules involved in this process, some of which are unknown, is regulated by two regions (Switch I and Switch II) that have different conformations in the GTP and GDP forms. The structure of the GDP form of EF-Tu is known only as a trypsin-modified fragment, which lacks the Switch I, or effector, domain. The aim of this work was to establish the overall structure of intact EF-Tu-GDP, in particular the structure of the effector domain.


    Related Citations: 
    • Crystal Structure of the Ternary Complex of Phe-tRNAphe, EF-TU, and a GTP Analog
      Nissen, P., Kjeldgaard, M., Thirup, S., Polekhina, G., Reshetnikova, L., Clark, B.F., Nyborg, J.
      (1995) Science 270: 1464
    • The Crystal Structure of Elongation Factor EF-TU from Thermus Aquaticus in the GTP Conformation
      Kjeldgaard, M., Nissen, P., Thirup, S., Nyborg, J.
      (1993) Structure 1: 35
    • Crystal Structure of Active Elongation Factor TU Reveals Major Domain Rearrangements
      Berchtold, H., Reshetnikova, L., Reiser, C.O., Schirmer, N.K., Sprinzl, M., Hilgenfeld, R.
      (1993) Nature 365: 126
    • Refined Structure of Elongation Factor EF-TU from Escherichia Coli
      Kjeldgaard, M., Nyborg, J.
      (1992) J Mol Biol 223: 721

    Organizational Affiliation

    Institute of Molecular and Structural Biology, Aarhus University, Langelandsgade, Denmark.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ELONGATION FACTOR TUA, B, C405Thermus aquaticusMutation(s): 0 
Gene Names: tuftufA
UniProt
Find proteins for Q01698 (Thermus aquaticus)
Explore Q01698 
Go to UniProtKB:  Q01698
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ01698
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.300 
  • R-Value Work: 0.235 
  • Space Group: P 63 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 175.9α = 90
b = 175.9β = 90
c = 223.8γ = 120
Software Package:
Software NamePurpose
TNTrefinement
DENZOdata reduction

Structure Validation

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Ligand Structure Quality Assessment 



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-06-05
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance