1DT9

THE CRYSTAL STRUCTURE OF HUMAN EUKARYOTIC RELEASE FACTOR ERF1-MECHANISM OF STOP CODON RECOGNITION AND PEPTIDYL-TRNA HYDROLYSIS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.246 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The crystal structure of human eukaryotic release factor eRF1--mechanism of stop codon recognition and peptidyl-tRNA hydrolysis.

Song, H.Mugnier, P.Das, A.K.Webb, H.M.Evans, D.R.Tuite, M.F.Hemmings, B.A.Barford, D.

(2000) Cell 100: 311-321


  • PubMed Abstract: 
  • The release factor eRF1 terminates protein biosynthesis by recognizing stop codons at the A site of the ribosome and stimulating peptidyl-tRNA bond hydrolysis at the peptidyl transferase center. The crystal structure of human eRF1 to 2.8 A resolution ...

    The release factor eRF1 terminates protein biosynthesis by recognizing stop codons at the A site of the ribosome and stimulating peptidyl-tRNA bond hydrolysis at the peptidyl transferase center. The crystal structure of human eRF1 to 2.8 A resolution, combined with mutagenesis analyses of the universal GGQ motif, reveals the molecular mechanism of release factor activity. The overall shape and dimensions of eRF1 resemble a tRNA molecule with domains 1, 2, and 3 of eRF1 corresponding to the anticodon loop, aminoacyl acceptor stem, and T stem of a tRNA molecule, respectively. The position of the essential GGQ motif at an exposed tip of domain 2 suggests that the Gln residue coordinates a water molecule to mediate the hydrolytic activity at the peptidyl transferase center. A conserved groove on domain 1, 80 A from the GGQ motif, is proposed to form the codon recognition site.


    Related Citations: 
    • Mutations in the Highly Conserved GGQ Motif of Class 1 Polypeptide Release Factors Abolish Ability of Human eRF1 to Trigger Peptidyl-tRNA Hydrolysis.
      Frolova, L.Y.,Tsivkovskii, R.Y.,Sivolobova, G.F.,Oparina, N.Y.,Serpinsky, O.I.,Blinov, V.M.,Tatkov, S.I.,Kisselev, L.L.
      (1999) RNA 5: 1014
    • A Highly Conserved Eukaryotic Protein Family Possesing Properties of Polypeptide Chain Release Factor
      Frolova, L.,Le Goff, X.,Rasmussen, H.H.,Cheperegin, S.,Drugeon, G.,Kress, M.,Arman, I.,Haenni, A.L.,Celis, J.E.,Philippe, M.,Justesen, J.,Kisselev, L.
      (1994) Nature 372: 701


    Organizational Affiliation

    Section of Structural Biology, Institute of Cancer Research, London, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (EUKARYOTIC PEPTIDE CHAIN RELEASE FACTOR SUBUNIT 1)
A
437Homo sapiensMutation(s): 0 
Gene Names: ETF1 (ERF1, RF1, SUP45L1)
Find proteins for P62495 (Homo sapiens)
Go to Gene View: ETF1
Go to UniProtKB:  P62495
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.246 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 77.080α = 90.00
b = 77.080β = 90.00
c = 194.440γ = 90.00
Software Package:
Software NamePurpose
SHARPphasing
CNSrefinement
CCP4data scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2000-01-12 
  • Released Date: 2000-02-02 
  • Deposition Author(s): Frolova, L.

Revision History 

  • Version 1.0: 2000-02-02
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance