1AIP

EF-TU EF-TS COMPLEX FROM THERMUS THERMOPHILUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the EF-Tu.EF-Ts complex from Thermus thermophilus.

Wang, Y.Jiang, Y.Meyering-Voss, M.Sprinzl, M.Sigler, P.B.

(1997) Nat.Struct.Mol.Biol. 4: 650-656


  • PubMed Abstract: 
  • In order to study nucleotide exchange mechanisms in GTP-binding proteins, we have determined the crystal structure of the complex formed by the elongation factor Tu (EF-Tu) and its exchange factor Ts (EF-Ts) from Thermus thermophilus. The complex is ...

    In order to study nucleotide exchange mechanisms in GTP-binding proteins, we have determined the crystal structure of the complex formed by the elongation factor Tu (EF-Tu) and its exchange factor Ts (EF-Ts) from Thermus thermophilus. The complex is a dyad symmetrical heterotetramer in which each EF-Tu, through a bipartite interface, interacts with two subunits of EF-Ts, explaining the need for a dimeric exchange factor. The architecture of the assembly is distinctly different from that of the corresponding heterodimeric E. coli complex, in which the monomeric E. coli EF-Ts remarkably forms essentially the same bipartite interface with EF-Tu through a sequence/structural repeat. GDP is released primarily by a Ts-induced peptide flip in the nucleotide binding pocket that disrupts hydrogen bonds to the phosphates and repositions the peptide carbonyl so as to sterically and electrostatically eject the GDP. The exchange mechanism may have useful implications for receptor-induced exchange in heterotrimeric G proteins.


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06511, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ELONGATION FACTOR TU
A, B, E, F
405Thermus thermophilusMutation(s): 0 
Gene Names: tufA (tuf)
Find proteins for P60338 (Thermus thermophilus)
Go to UniProtKB:  P60338
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
ELONGATION FACTOR TS
C, D, G, H
196Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Mutation(s): 0 
Gene Names: tsf
Find proteins for P43895 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  P43895
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.216 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 120.300α = 90.00
b = 127.500β = 90.30
c = 123.700γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
X-PLORmodel building
SCALEPACKdata scaling
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-10-22
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance