1EFU

ELONGATION FACTOR COMPLEX EF-TU/EF-TS FROM ESCHERICHIA COLI

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.175 

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This is version 1.3 of the entry. See complete history. 


Literature

The structure of the Escherichia coli EF-Tu.EF-Ts complex at 2.5 A resolution.

Kawashima, T., Berthet-Colominas, C., Wulff, M., Cusack, S., Leberman, R.

(1996) Nature 379: 511-518

  • DOI: https://doi.org/10.1038/379511a0
  • Primary Citation of Related Structures:  
    1EFU

  • PubMed Abstract: 

    The crystal structure of the EF-Tu.EF-Ts complex from Escherichia coli has been determined to a resolution of 2.5 A. The complex contains two subunits of each of the elongation factors. The two EF-Ts molecules form a tight dimer, but there is little contact between the two EF-Tu molecules. The interaction of EF-Ts with EF-Tu results principally in the disruption of the Mg2+ ion binding site, thereby reducing the affinity of EF-Tu for guanine nucleotides.

    • Organizational Affiliation: 

    European Molecular Biology Laboratory, Grenoble Outstation, France.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ELONGATION FACTOR TU
A, C
385Escherichia coliMutation(s): 0 
UniProt
Find proteins for P0CE48 (Escherichia coli (strain K12))
Explore P0CE48 
Go to UniProtKB:  P0CE48
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0CE48
Sequence Annotations
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  • Reference Sequence
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(by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
ELONGATION FACTOR TS
B, D
282Escherichia coliMutation(s): 0 
UniProt
Find proteins for P0A6P1 (Escherichia coli (strain K12))
Explore P0A6P1 
Go to UniProtKB:  P0A6P1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0A6P1
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.175 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.533α = 90
b = 108.537β = 90
c = 194.55γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
MOSFLMdata reduction
CCP4data scaling
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-01-11
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-02-07
    Changes: Data collection, Database references, Other