3J5Y

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


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


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: 10.1093/nar/gkt1279

  • 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-elec ...

    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

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic peptide chain release factor subunit 1
A
414Homo sapiensMutation(s): 0 
Gene Names: ETF1 (ERF1, RF1, SUP45L1)
Find proteins for P62495 (Homo sapiens)
Go to Gene View: ETF1
Go to UniProtKB:  P62495
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic peptide chain release factor GTP-binding subunit ERF3A
B
428Homo sapiensMutation(s): 0 
Gene Names: GSPT1 (ERF3A)
Find proteins for P15170 (Homo sapiens)
Go to Gene View: GSPT1
Go to UniProtKB:  P15170
Entity ID: 3
MoleculeChainsLengthOrganism
5'-R(*AP*UP*UP*GP*UP*AP*AP*AP*AP*A)-3'C10Homo sapiens
Entity ID: 4
MoleculeChainsLengthOrganism
tRNA-LeuD88Oryctolagus cuniculus
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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