1XB2

Crystal Structure of Bos taurus mitochondrial Elongation Factor Tu/Ts Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.219 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal Structure of the Bovine Mitochondrial Elongation Factor Tu.Ts Complex

Jeppesen, M.G.Navratil, T.Spremulli, L.L.Nyborg, J.

(2005) J Biol Chem 280: 5071-5081

  • DOI: 10.1074/jbc.M411782200
  • Primary Citation of Related Structures:  
    1XB2

  • PubMed Abstract: 
  • The three-dimensional structure of the bovine mitochondrial elongation factor (EF)-Tu.Ts complex (EF-Tumt.Tsmt) has been determined to 2.2-A resolution using the multi-wavelength anomalous dispersion experimental method. This complex provides the first insight into the structure of EF-Tsmt ...

    The three-dimensional structure of the bovine mitochondrial elongation factor (EF)-Tu.Ts complex (EF-Tumt.Tsmt) has been determined to 2.2-A resolution using the multi-wavelength anomalous dispersion experimental method. This complex provides the first insight into the structure of EF-Tsmt. EF-Tsmt is similar to Escherichia coli and Thermus thermophilus EF-Ts in the amino-terminal domain. However, the structure of EF-Tsmt deviates considerably in the core domain with a five-stranded beta-sheet forming a portion of subdomain N of the core. In E. coli EF-Ts, this region is composed of a three-stranded sheet. The coiled-coil domain of the E. coli EF-Ts is largely eroded in EF-Tsmt, in which it consists of a large loop packed against subdomain C of the core. The conformation of bovine EF-Tumt in complex with EF-Tsmt is distinct from its conformation in the EF-Tumt.GDP complex. When domain III of bovine EF-Tumt.GDP is superimposed on domain III of EF-Tumt in the EF-Tumt.Tsmt complex, helix B from domain I is also almost superimposed. However, the rest of domain I is rotated relative to this helix toward domain II, which itself is rotated toward domain I relative to domain III. Extensive contacts are observed between the amino-terminal domain of EF-Tsmt and domain I of EF-Tumt. Furthermore, the conserved TDFV sequence of EF-Tsmt also contacts domain I with the side chain of Asp139 contacting helix B of EF-Tumt and inserting the side chain of Phe140 between helices B and C. The structure of the EF-Tumt.Tsmt complex provides new insights into the nucleotide exchange mechanism and provides a framework for explaining much of the mutational data obtained for this complex.


    Organizational Affiliation

    Department of Molecular Biology, University of Aarhus, Gustav Wieds Vej 10 C, 8000 Aarhus C, Denmark.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Elongation factor Tu, mitochondrialA409Bos taurusMutation(s): 11 
Gene Names: TUFM
UniProt
Find proteins for P49410 (Bos taurus)
Explore P49410 
Go to UniProtKB:  P49410
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP49410
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Elongation factor Ts, mitochondrialB291Bos taurusMutation(s): 0 
Gene Names: TSFM
UniProt
Find proteins for P43896 (Bos taurus)
Explore P43896 
Go to UniProtKB:  P43896
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP43896
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.219 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 94α = 90
b = 149.3β = 125.2
c = 70γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-11-23
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance