2LGT

Backbone 1H, 13C, and 15N Chemical Shift Assignments for QFM(Y)F


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: all calculated structures submitted 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Selectivity of stop codon recognition in translation termination is modulated by multiple conformations of GTS loop in eRF1

Wong, L.E.Li, Y.Pillay, S.Frolova, L.Pervushin, K.

(2012) Nucleic Acids Res 

  • DOI: https://doi.org/10.1093/nar/gks192
  • Primary Citation of Related Structures:  
    2LGT

  • PubMed Abstract: 

    Translation termination in eukaryotes is catalyzed by two release factors eRF1 and eRF3 in a cooperative manner. The precise mechanism of stop codon discrimination by eRF1 remains obscure, hindering drug development targeting aberrations at translation termination. By solving the solution structures of the wild-type N-domain of human eRF1 exhibited omnipotent specificity, i.e. recognition of all three stop codons, and its unipotent mutant with UGA-only specificity, we found the conserved GTS loop adopting alternate conformations. We propose that structural variability in the GTS loop may underline the switching between omnipotency and unipotency of eRF1, implying the direct access of the GTS loop to the stop codon. To explore such feasibility, we positioned N-domain in a pre-termination ribosomal complex using the binding interface between N-domain and model RNA oligonucleotides mimicking Helix 44 of 18S rRNA. NMR analysis revealed that those duplex RNA containing 2-nt internal loops interact specifically with helix α1 of N-domain, and displace C-domain from a non-covalent complex of N-domain and C-domain, suggesting domain rearrangement in eRF1 that accompanies N-domain accommodation into the ribosomal A site.


  • Organizational Affiliation

    School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Eukaryotic peptide chain release factor subunit 1144Homo sapiensMutation(s): 4 
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 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP62495
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: all calculated structures submitted 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-03-14
    Type: Initial release
  • Version 1.1: 2024-05-01
    Changes: Data collection, Database references