Experimental Data Snapshot

  • Resolution: 2.80 Å
  • R-Value Free: 0.320 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.230 

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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: 3669-3677

  • DOI: https://doi.org/10.1002/j.1460-2075.1994.tb06676.x
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The crystal structure of Thermus thermophilus elongation factor G without guanine nucleotide was determined to 2.85 A. This GTPase has five domains with overall dimensions of 50 x 60 x 118 A. The GTP binding domain has a core common to other GTPases with a unique subdomain which probably functions as an intrinsic nucleotide exchange factor. Domains I and II are homologous to elongation factor Tu and their arrangement, both with and without GDP, is more similar to elongation factor Tu in complex with a GTP analogue than with GDP. Domains III and V show structural similarities to ribosomal proteins. Domain IV protrudes from the main body of the protein and has an extraordinary topology with a left-handed cross-over connection between two parallel beta-strands.

  • Organizational Affiliation

    Department of Molecular Biophysics, University of Lund, Sweden.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ELONGATION FACTOR G691Thermus thermophilus HB8Mutation(s): 0 
Find proteins for Q5SHN5 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8))
Explore Q5SHN5 
Go to UniProtKB:  Q5SHN5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5SHN5
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.80 Å
  • R-Value Free: 0.320 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.230 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.6α = 90
b = 106β = 90
c = 116.4γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
XENGENdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-08-01
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2024-02-07
    Changes: Data collection, Database references, Other