1QXO

Crystal structure of Chorismate synthase complexed with oxidized FMN and EPSP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.157 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The structure of chorismate synthase reveals a novel flavin binding site fundamental to a unique chemical reaction

Maclean, J.Ali, S.

(2003) Structure 11: 1499-1511


  • PubMed Abstract: 
  • The crystal structure of chorismate synthase (CS) from Streptococcus pneumoniae has been solved to 2.0 A resolution in the presence of flavin mononucleotide (FMN) and the substrate 5-enolpyruvyl-3-shikimate phosphate (EPSP). CS catalyses the final st ...

    The crystal structure of chorismate synthase (CS) from Streptococcus pneumoniae has been solved to 2.0 A resolution in the presence of flavin mononucleotide (FMN) and the substrate 5-enolpyruvyl-3-shikimate phosphate (EPSP). CS catalyses the final step of the shikimate pathway and is a potential therapeutic target for the rational design of novel antibacterials, antifungals, antiprotozoals, and herbicides. CS is a tetramer with the monomer possessing a novel beta-alpha-beta fold. The interactions between the enzyme, cofactor, and substrate reveal the structural reasons underlying the unique catalytic mechanism and identify the amino acids involved. This structure provides the essential initial information necessary for the generation of novel anti-infective compounds by a structure-guided medicinal chemistry approach.


    Organizational Affiliation

    Department of Structural Biology, West of Scotland Science Park, Glasgow G20 0XP, Scotland, United Kingdom. john.maclean@btinternet.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Chorismate synthase
A, B, C, D
388Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4)Mutation(s): 0 
Gene Names: aroC
EC: 4.2.3.5
Find proteins for P0A2Y6 (Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4))
Go to UniProtKB:  P0A2Y6
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FMN
Query on FMN

Download SDF File 
Download CCD File 
A, B, C, D
FLAVIN MONONUCLEOTIDE
RIBOFLAVIN MONOPHOSPHATE
C17 H21 N4 O9 P
FVTCRASFADXXNN-SCRDCRAPSA-N
 Ligand Interaction
NCO
Query on NCO

Download SDF File 
Download CCD File 
A, B, C, D
COBALT HEXAMMINE(III)
Co H18 N6
DYLMFCCYOUSRTK-FGTKAUEHAT
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A, B, C, D
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
EPS
Query on EPS

Download SDF File 
Download CCD File 
A, B, C, D
5-[(1-CARBOXYVINYL)OXY]-4-HYDROXY-3-(PHOSPHONOOXY)CYCLOHEX-1-ENE-1-CARBOXYLIC ACID
5-ENOLPYRUVYLSHIKIMATE-3-PHOSPHATE
C10 H13 O10 P
QUTYKIXIUDQOLK-PRJMDXOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
FMNKd: >20000 nM (100) BINDINGDB
FMNKd: 20 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.157 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 81.059α = 90.00
b = 124.582β = 115.15
c = 85.163γ = 90.00
Software Package:
Software NamePurpose
SnBphasing
MOSFLMdata reduction
REFMACrefinement
SCALAdata scaling
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2003-09-08 
  • Released Date: 2003-12-23 
  • Deposition Author(s): Maclean, J., Ali, S.

Revision History 

  • Version 1.0: 2003-12-23
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description