1SRY

REFINED CRYSTAL STRUCTURE OF THE SERYL-TRNA SYNTHETASE FROM THERMUS THERMOPHILUS AT 2.5 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Refined crystal structure of the seryl-tRNA synthetase from Thermus thermophilus at 2.5 A resolution.

Fujinaga, M.Berthet-Colominas, C.Yaremchuk, A.D.Tukalo, M.A.Cusack, S.

(1993) J.Mol.Biol. 234: 222-233

  • DOI: 10.1006/jmbi.1993.1576

  • PubMed Abstract: 
  • The three-dimensional structure of the seryl-tRNA synthetase from Thermus thermophilus has been determined and refined at 2.5 A resolution. The final model consists of a dimer of 421 residues each and 190 water molecules. The R-factor is 18.4% for al ...

    The three-dimensional structure of the seryl-tRNA synthetase from Thermus thermophilus has been determined and refined at 2.5 A resolution. The final model consists of a dimer of 421 residues each and 190 water molecules. The R-factor is 18.4% for all the data between 10 and 2.5 A resolution. The structure is very similar to that of the homologous enzyme from Escherichia coli, with an r.m.s. difference of 1.5 A for the 357 alpha-carbon atoms considered equivalent. The comparison of the two structures indicates increased hydrophobicity, reduced conformational entropy and reduced torsional strain as possible mechanisms by which thermostability is obtained in the enzyme from the thermophile.


    Related Citations: 
    • Crystals of Seryl-tRNA Synthetase from Thermus Thermophilus. Preliminary Crystallographic Data
      Garber, M.B.,Yaremchuk, A.D.,Tukalo, M.A.,Egorova, S.P.,Berthet-Colominas, C.,Leberman, R.
      (1990) J.Mol.Biol. 213: 631
    • Seryl-tRNA Synthetase from Escherichia Coli at 2.5 Angstroms Resolution: A Second Class of Synthetase Structure
      Cusack, S.,Berthet-Colominas, C.,Haetlein, M.,Nassar, N.,Leberman, R.
      (1990) Nature 347: 249


    Organizational Affiliation

    EMBL Grenoble Outstation, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SERYL-tRNA SYNTHETASE
A, B
421Thermus thermophilus (strain HB27 / ATCC BAA-163 / DSM 7039)Gene Names: serS
EC: 6.1.1.11
Find proteins for P34945 (Thermus thermophilus (strain HB27 / ATCC BAA-163 / DSM 7039))
Go to UniProtKB:  P34945
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.184 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 87.030α = 90.00
b = 127.460β = 108.90
c = 63.370γ = 90.00
Software Package:
Software NamePurpose
GROMOSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance