3J5Y

Structure of the mammalian ribosomal pre-termination complex associated with eRF1-eRF3-GDPNP


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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This is version 1.2 of the entry. See complete history


Literature

Structure of the mammalian ribosomal pre-termination complex associated with eRF1*eRF3*GDPNP.

des Georges, A.Hashem, Y.Unbehaun, A.Grassucci, R.A.Taylor, D.Hellen, C.U.Pestova, T.V.Frank, J.

(2014) Nucleic Acids Res 42: 3409-3418

  • DOI: https://doi.org/10.1093/nar/gkt1279
  • Primary Citation of Related Structures:  
    3J5Y

  • PubMed Abstract: 

    Eukaryotic translation termination results from the complex functional interplay between two release factors, eRF1 and eRF3, in which GTP hydrolysis by eRF3 couples codon recognition with peptidyl-tRNA hydrolysis by eRF1. Here, we present a cryo-electron microscopy structure of pre-termination complexes associated with eRF1•eRF3•GDPNP at 9.7 -Å resolution, which corresponds to the initial pre-GTP hydrolysis stage of factor attachment and stop codon recognition. It reveals the ribosomal positions of eRFs and provides insights into the mechanisms of stop codon recognition and triggering of eRF3's GTPase activity.


  • Organizational Affiliation

    Howard Hughes Medical Institute, Chevy Chase, MD, USA, Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, USA, Department of Cell Biology, SUNY Downstate Medical Center, Brooklyn, NY, USA, Department of Pharmacology, Case Western Reserve University, Cleveland, OH, USA and Department of Biological Sciences, Columbia University, New York, NY, USA.


Macromolecules

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Eukaryotic peptide chain release factor subunit 1414Homo sapiensMutation(s): 0 
Gene Names: ETF1ERF1RF1SUP45L1
UniProt & NIH Common Fund Data Resources
Find proteins for P62495 (Homo sapiens)
Explore P62495 
Go to UniProtKB:  P62495
PHAROS:  P62495
GTEx:  ENSG00000120705 
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UniProt GroupP62495
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Eukaryotic peptide chain release factor GTP-binding subunit ERF3A428Homo sapiensMutation(s): 0 
Gene Names: GSPT1ERF3A
UniProt & NIH Common Fund Data Resources
Find proteins for P15170 (Homo sapiens)
Explore P15170 
Go to UniProtKB:  P15170
PHAROS:  P15170
GTEx:  ENSG00000103342 
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Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP15170
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  • Reference Sequence

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Entity ID: 3
MoleculeChains LengthOrganismImage
5'-R(*AP*UP*UP*GP*UP*AP*AP*AP*AP*A)-3'10Homo sapiens
Sequence Annotations
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  • Reference Sequence
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Entity ID: 4
MoleculeChains LengthOrganismImage
tRNA-Leu88Oryctolagus cuniculus
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-12-25
    Type: Initial release
  • Version 1.1: 2014-03-26
    Changes: Database references
  • Version 1.2: 2018-07-18
    Changes: Data collection