ISDA: 3J5Y

Deposition Date 2013-11-21

Release Date 2013-12-25

Last Version Date 2024-11-06

Entry Detail

PDB ID:

3J5Y

Keywords:

TRANSLATION/RNA

Title:

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

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)
Oryctolagus cuniculus (Taxon ID: 9986)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

9.70 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Eukaryotic peptide chain release factor subunit 1
Gene (Uniprot):ETF1
Chain IDs:A
Chain Length:414
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P62495 Pfam ID:PF03463, PF03464, PF03465

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Eukaryotic peptide chain release factor GTP-binding subunit ERF3A
Gene (Uniprot):GSPT1
Chain IDs:B
Chain Length:428
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P15170 Pfam ID:PF00009, PF03144, PF22594

Polymer Type:polyribonucleotide
Molecule:5'-R(*AP*UP*UP*GP*UP*AP*AP*AP*AP*A)-3'
Chain IDs:C
Chain Length:10
Number of Molecules:1
Biological Source:Homo sapiens

Polymer Type:polyribonucleotide
Molecule:tRNA-Leu
Chain IDs:D
Chain Length:88
Number of Molecules:1
Biological Source:Oryctolagus cuniculus

Ligand Molecules

Primary Citation

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.Show

Nucleic Acids Res. 42 3409 3418 (2014)

PMID: 24335085 DOI: 10.1093/nar/gkt1279

Abstact

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.

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Primary Citation of related structures