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: 2.70 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

  • DOI: 10.1016/s0092-8674(00)80667-4
  • Primary Citation of Related Structures:  
    1DT9

  • 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, combined with mutagenesis analyses of the universal GGQ motif, reveals the molecular mechanism of release factor activity ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (EUKARYOTIC PEPTIDE CHAIN RELEASE FACTOR SUBUNIT 1)A437Homo 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
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.246 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.08α = 90
b = 77.08β = 90
c = 194.44γ = 90
Software Package:
Software NamePurpose
SHARPphasing
CNSrefinement
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

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

Revision History  (Full details and data files)

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