1KOG

Crystal structure of E. coli threonyl-tRNA synthetase interacting with the essential domain of its mRNA operator


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.251 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis of translational control by Escherichia coli threonyl tRNA synthetase.

Torres-Larios, A.Dock-Bregeon, A.C.Romby, P.Rees, B.Sankaranarayanan, R.Caillet, J.Springer, M.Ehresmann, C.Ehresmann, B.Moras, D.

(2002) Nat.Struct.Mol.Biol. 9: 343-347

  • DOI: 10.1038/nsb789

  • PubMed Abstract: 
  • Escherichia coli threonyl-tRNA synthetase (ThrRS) represses the translation of its own messenger RNA by binding to an operator located upstream of the initiation codon. The crystal structure of the complex between the core of ThrRS and the essential ...

    Escherichia coli threonyl-tRNA synthetase (ThrRS) represses the translation of its own messenger RNA by binding to an operator located upstream of the initiation codon. The crystal structure of the complex between the core of ThrRS and the essential domain of the operator shows that the mRNA uses the recognition mode of the tRNA anticodon loop to initiate binding. The final positioning of the operator, upon which the control mechanism is based, relies on a characteristic RNA motif adapted to the enzyme surface. The finding of other thrS operators that have this conserved motif leads to a generalization of this regulatory mechanism to a subset of Gram-negative bacteria.


    Organizational Affiliation

    Laboratoire de Biologie et Génomique Structurales, IGBMC, BP163, 67404 Illkirch Cedex, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Threonyl-tRNA synthetase
A, B, C, D, E, F, G, H
401Escherichia coli (strain K12)Gene Names: thrS
EC: 6.1.1.3
Find proteins for P0A8M3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A8M3
Entity ID: 1
MoleculeChainsLengthOrganism
Threonyl-tRNA synthetase mRNAI,J,K,L,M,N,O,P37N/A
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
TSB
Query on TSB

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H
5'-O-(N-(L-THREONYL)-SULFAMOYL)ADENOSINE
C14 H21 N7 O8 S
UPVAPSGKXAAHBG-CKTDUXNWSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.251 
  • Space Group: P 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 188.450α = 90.00
b = 101.740β = 114.40
c = 199.340γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
CNSrefinement
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-04-26
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance