1HU3

MIDDLE DOMAIN OF HUMAN EIF4GII


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.37 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.249 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A conserved HEAT domain within eIF4G directs assembly of the translation initiation machinery.

Marcotrigiano, J.Lomakin, I.B.Sonenberg, N.Pestova, T.V.Hellen, C.U.Burley, S.K.

(2001) Mol.Cell 7: 193-203


  • PubMed Abstract: 
  • The X-ray structure of the phylogenetically conserved middle portion of human eukaryotic initiation factor (eIF) 4GII has been determined at 2.4 A resolution, revealing a crescent-shaped domain consisting of ten alpha helices arranged as five HEAT re ...

    The X-ray structure of the phylogenetically conserved middle portion of human eukaryotic initiation factor (eIF) 4GII has been determined at 2.4 A resolution, revealing a crescent-shaped domain consisting of ten alpha helices arranged as five HEAT repeats. Together with the ATP-dependent RNA helicase eIF4A, this HEAT domain suffices for 48S ribosomal complex formation with a picornaviral RNA internal ribosome entry site (IRES). Structure-based site-directed mutagenesis was used to identify two adjacent features on the surface of this essential component of the translation initiation machinery that, respectively, bind eIF4A and a picornaviral IRES. The structural and biochemical results provide mechanistic insights into both cap-dependent and cap-independent translation initiation.


    Organizational Affiliation

    Laboratories of Molecular Biophysics, The Rockefeller University, New York, NY 10021, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
EIF4GII
A
260Homo sapiensMutation(s): 0 
Gene Names: EIF4G3
Find proteins for O43432 (Homo sapiens)
Go to Gene View: EIF4G3
Go to UniProtKB:  O43432
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: 2.37 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.249 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 118.800α = 90.00
b = 118.800β = 90.00
c = 58.200γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
SOLVEphasing
DENZOdata reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-02-21
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance