4OBY

Crystal Structure of E.coli Arginyl-tRNA Synthetase and Ligand Binding Studies Revealed Key Residues in Arginine Recognition


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.574 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of E. coli arginyl-tRNA synthetase and ligand binding studies revealed key residues in arginine recognition.

Bi, K.Zheng, Y.Gao, F.Dong, J.Wang, J.Wang, Y.Gong, W.

(2014) Protein Cell 5: 151-159

  • DOI: 10.1007/s13238-013-0012-1

  • PubMed Abstract: 
  • The arginyl-tRNA synthetase (ArgRS) catalyzes the esterification reaction between L-arginine and its cognate tRNA(Arg). Previously reported structures of ArgRS shed considerable light on the tRNA recognition mechanism, while the aspect of amino acid ...

    The arginyl-tRNA synthetase (ArgRS) catalyzes the esterification reaction between L-arginine and its cognate tRNA(Arg). Previously reported structures of ArgRS shed considerable light on the tRNA recognition mechanism, while the aspect of amino acid binding in ArgRS remains largely unexplored. Here we report the first crystal structure of E. coli ArgRS (eArgRS) complexed with L-arginine, and a series of mutational studies using isothermal titration calorimetry (ITC). Combined with previously reported work on ArgRS, our results elucidated the structural and functional roles of a series of important residues in the active site, which furthered our understanding of this unique enzyme.


    Organizational Affiliation

    Laboratory of Non-coding RNA, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Arginine--tRNA ligase
A
578Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: argS
EC: 6.1.1.19
Find proteins for P11875 (Escherichia coli (strain K12))
Go to UniProtKB:  P11875
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ARG
Query on ARG

Download SDF File 
Download CCD File 
A
ARGININE
C6 H15 N4 O2
ODKSFYDXXFIFQN-BYPYZUCNSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.574 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.201 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 118.599α = 90.00
b = 94.136β = 110.53
c = 62.717γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data scaling
DENZOdata reduction
CNSrefinement
PHENIXrefinement
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-02-12
    Type: Initial release
  • Version 1.1: 2014-04-02
    Type: Database references