1LYL

LYSYL-TRNA SYNTHETASE (LYSU) (E.C.6.1.1.6) COMPLEXED WITH LYSINE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The crystal structure of the lysyl-tRNA synthetase (LysU) from Escherichia coli

Onesti, S.Miller, A.D.Brick, P.

(1995) Structure 3: 163-176


  • PubMed Abstract: 
  • Lysyl-tRNA synthetase catalyzes the attachment of the amino acid lysine to the cognate tRNA. The enzyme is a member of the class II amino-acyl-tRNA synthetases; the crystal structures of the seryl- and aspartyl-tRNA synthetases from this class are al ...

    Lysyl-tRNA synthetase catalyzes the attachment of the amino acid lysine to the cognate tRNA. The enzyme is a member of the class II amino-acyl-tRNA synthetases; the crystal structures of the seryl- and aspartyl-tRNA synthetases from this class are already known. Lysyl-tRNA synthetase shows extensive sequence homology with aspartyl-tRNA synthetase. In Escherichia coli there are two isoforms of the enzyme, LysS and LysU. Unlike LysS, which is synthesized under normal growth conditions, LysU is the product of a normally silent gene which is overexpressed under extreme physiological conditions (such as heat-shock), and can synthesize a number of adenyl dinucleotides (in particular AppppA). These dinucleotides have been proposed to act as modulators of the heat-shock response and stress response.


    Related Citations: 
    • Crystallization and Preliminary Diffraction Studies of E.Coli Lysyl-T(Slash)RNA Synthetase (Lysu)
      Onesti, S.,Theoclitou, M.-E.,Wittung, E.P.L.,Miller, A.D.,Plateau, P.,Blanquet, S.,Brick, P.
      (1994) J.Mol.Biol. 243: 123


    Organizational Affiliation

    Blackett Laboratory, Imperial College, London, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LYSYL-TRNA SYNTHETASE (LYSU)
A, B, C
504Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: lysU
EC: 6.1.1.6
Find proteins for P0A8N5 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A8N5
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
LYS
Query on LYS

Download SDF File 
Download CCD File 
A, B, C
LYSINE
C6 H15 N2 O2
KDXKERNSBIXSRK-YFKPBYRVSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.193 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 144.270α = 90.00
b = 257.800β = 90.00
c = 182.080γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
MOSFLMdata reduction
CCP4data reduction
X-PLORphasing
MOSFLM/CCP4data collection
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1995-05-03 
  • Released Date: 1995-10-15 
  • Deposition Author(s): Onesti, S., Brick, P.

Revision History 

  • Version 1.0: 1995-10-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance