1QTQ

GLUTAMINYL-TRNA SYNTHETASE COMPLEXED WITH TRNA AND AN AMINO ACID ANALOG


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.244 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

How glutaminyl-tRNA synthetase selects glutamine.

Rath, V.L.Silvian, L.F.Beijer, B.Sproat, B.S.Steitz, T.A.

(1998) Structure 6: 439-449


  • PubMed Abstract: 
  • Aminoacyl-tRNA synthetases covalently link a specific amino acid to the correct tRNA. The fidelity of this reaction is essential for accurate protein synthesis. Each synthetase has a specific molecular mechanism to distinguish the correct pair of sub ...

    Aminoacyl-tRNA synthetases covalently link a specific amino acid to the correct tRNA. The fidelity of this reaction is essential for accurate protein synthesis. Each synthetase has a specific molecular mechanism to distinguish the correct pair of substrates from the pool of amino acids and isologous tRNA molecules. In the case of glutaminyl-tRNA synthetase (GlnRS) the prior binding of tRNA is required for activation of glutamine by ATP. A complete understanding of amino acid specificity in GlnRS requires the determination of the structure of the synthetase with both tRNA and substrates bound.


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, 266 Whitney Avenue, PO Box 208114, New Haven, CT 06520-8114, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (GLUTAMINYL-TRNA SYNTHETASE)
A
553Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: glnS
EC: 6.1.1.18
Find proteins for P00962 (Escherichia coli (strain K12))
Go to UniProtKB:  P00962
Entity ID: 1
MoleculeChainsLengthOrganism
RNA (TRNA GLN II )B75Escherichia coli
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
QSI
Query on QSI

Download SDF File 
Download CCD File 
A
5'-O-[N-(L-GLUTAMINYL)-SULFAMOYL]ADENOSINE
C15 H22 N8 O8 S
KXWKSWRGZLZHEF-WERHYGNASA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.244 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 238.780α = 90.00
b = 93.360β = 90.00
c = 115.260γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
SCALEPACKdata scaling
DENZOdata reduction
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-05-27
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance