3J8B

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


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.3 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
  • Primary Citation of Related Structures:  

  • 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: jan.erzberger@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 
Gene Names: EIF3A (EIF3S10, KIAA0139)
Find proteins for Q14152 (Homo sapiens)
Go to Gene View: EIF3A
Go to UniProtKB:  Q14152
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit C
C
547Homo sapiensMutation(s): 0 
Gene Names: EIF3C (EIF3S8)
Find proteins for Q99613 (Homo sapiens)
Go to Gene View: EIF3C
Go to UniProtKB:  Q99613
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit E
E
422Homo sapiensMutation(s): 0 
Gene Names: EIF3E (EIF3S6, INT6)
Find proteins for P60228 (Homo sapiens)
Go to Gene View: EIF3E
Go to UniProtKB:  P60228
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit F
F
327Homo sapiensMutation(s): 0 
Gene Names: EIF3F (EIF3S5)
Find proteins for O00303 (Homo sapiens)
Go to Gene View: EIF3F
Go to UniProtKB:  O00303
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit H
H
343Homo sapiensMutation(s): 0 
Gene Names: EIF3H (EIF3S3)
Find proteins for O15372 (Homo sapiens)
Go to Gene View: EIF3H
Go to UniProtKB:  O15372
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit K
K
208Homo sapiensMutation(s): 0 
Gene Names: EIF3K (EIF3S12)
Find proteins for Q9UBQ5 (Homo sapiens)
Go to Gene View: EIF3K
Go to UniProtKB:  Q9UBQ5
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit L
L
540Homo sapiensMutation(s): 0 
Gene Names: EIF3L (EIF3EIP, EIF3S6IP)
Find proteins for Q9Y262 (Homo sapiens)
Go to Gene View: EIF3L
Go to UniProtKB:  Q9Y262
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic translation initiation factor 3 subunit M
M
364Homo sapiensMutation(s): 0 
Gene Names: EIF3M (HFLB5, PCID1)
Find proteins for Q7L2H7 (Homo sapiens)
Go to Gene View: EIF3M
Go to UniProtKB:  Q7L2H7
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
UNK
Query on UNK
A, C, E, F, H, K, L, M
L-PEPTIDE LINKINGC4 H9 N O2

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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.3 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



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
    Type: Data collection