3J8B

Model of the human eIF3 PCI-MPN octamer docked into the 43S-HCV IRES EM map


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Molecular Architecture of the 40SeIF1eIF3 Translation Initiation Complex.

Erzberger, J.P.Stengel, F.Pellarin, R.Zhang, S.Schaefer, T.Aylett, C.H.Cimermancic, P.Boehringer, D.Sali, A.Aebersold, R.Ban, N.

(2014) Cell 158: 1123-1135

  • DOI: 10.1016/j.cell.2014.07.044
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Eukaryotic translation initiation requires the recruitment of the large, multiprotein eIF3 complex to the 40S ribosomal subunit. We present X-ray structures of all major components of the minimal, six-subunit Saccharomyces cerevisiae eIF3 core. These ...

    Eukaryotic translation initiation requires the recruitment of the large, multiprotein eIF3 complex to the 40S ribosomal subunit. We present X-ray structures of all major components of the minimal, six-subunit Saccharomyces cerevisiae eIF3 core. These structures, together with electron microscopy reconstructions, cross-linking coupled to mass spectrometry, and integrative structure modeling, allowed us to position and orient all eIF3 components on the 40Sâ‹…eIF1 complex, revealing an extended, modular arrangement of eIF3 subunits. Yeast eIF3 engages 40S in a clamp-like manner, fully encircling 40S to position key initiation factors on opposite ends of the mRNA channel, providing a platform for the recruitment, assembly, and regulation of the translation initiation machinery. The structures of eIF3 components reported here also have implications for understanding the architecture of the mammalian 43S preinitiation complex and the complex of eIF3, 40S, and the hepatitis C internal ribosomal entry site RNA.


    Related Citations: 
    • Hepatitis-C-virus-like internal ribosome entry sites displace eIF3 to gain access to the 40S subunit.
      Hashem, Y., des Georges, A., Dhote, V., Langlois, R., Liao, H.Y., Grassucci, R.A., Pestova, T.V., Hellen, C.U., Frank, J.
      (2013) Nature 503: 539

    Organizational Affiliation

    Department of Biology, Institute of Molecular Biology and Biophysics, ETH Zurich, Otto-Stern-Weg 5, 8093 Zurich, Switzerland. Electronic address: ban@mol.biol.ethz.ch.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit A
A
529Homo sapiensMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit C
C
547Homo sapiensMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit E
E
422Homo sapiensMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

Find similar proteins by: Sequence  |  Structure

Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit F
F
327Homo sapiensMutation(s): 0 
EC: 3.4.19.12
Protein Feature View is not available: No corresponding UniProt sequence found.

Find similar proteins by: Sequence  |  Structure

Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit H
H
343Homo sapiensMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

Find similar proteins by: Sequence  |  Structure

Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit K
K
208Homo sapiensMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

Find similar proteins by: Sequence  |  Structure

Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit L
L
540Homo sapiensMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

Find similar proteins by: Sequence  |  Structure

Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit M
M
364Homo sapiensMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2014-10-08 
  • Released Date: 2014-10-22 
  • Deposition Author(s): Erzberger, J.P., Ban, N.
  • This entry supersedes: 3J7J

Revision History 

  • Version 1.0: 2014-10-22
    Type: Initial release
  • Version 1.1: 2018-07-18
    Changes: Data collection