1D0I

CRYSTAL STRUCTURE OF TYPE II DEHYDROQUINASE FROM STREPTOMYCES COELICOLOR COMPLEXED WITH PHOSPHATE IONS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.171 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure and mechanism of the type II dehydroquinase from Streptomyces coelicolor.

Roszak, A.W.Robinson, D.A.Krell, T.Hunter, I.S.Fredrickson, M.Abell, C.Coggins, J.R.Lapthorn, A.J.

(2002) Structure 10: 493-503

  • Primary Citation of Related Structures:  1GTZ, 1GU0, 1GU1
  • Also Cited By: 2BT4

  • PubMed Abstract: 
  • The structure of the type II DHQase from Streptomyces coelicolor has been solved and refined to high resolution in complexes with a number of ligands, including dehydroshikimate and a rationally designed transition state analogue, 2,3-anhydro-quinic ...

    The structure of the type II DHQase from Streptomyces coelicolor has been solved and refined to high resolution in complexes with a number of ligands, including dehydroshikimate and a rationally designed transition state analogue, 2,3-anhydro-quinic acid. These structures define the active site of the enzyme and the role of key amino acid residues and provide snap shots of the catalytic cycle. The resolution of the flexible lid domain (residues 21-31) shows that the invariant residues Arg23 and Tyr28 close over the active site cleft. The tyrosine acts as the base in the initial proton abstraction, and evidence is provided that the reaction proceeds via an enol intermediate. The active site of the structure of DHQase in complex with the transition state analog also includes molecules of tartrate and glycerol, which provide a basis for further inhibitor design.


    Organizational Affiliation

    Department of Chemistry, Institute of Biomedical and Life Sciences, University of Glasgow, Scotland, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TYPE II 3-DEHYDROQUINATE HYDRATASE
A, B, C, D, E, F, G, H, I, J, K, L
156Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)Gene Names: aroQ
EC: 4.2.1.10
Find proteins for P15474 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145))
Go to UniProtKB:  P15474
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
TRS
Query on TRS

Download SDF File 
Download CCD File 
A, D, G, J
2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
TRIS BUFFER
C4 H12 N O3
LENZDBCJOHFCAS-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.171 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 113.200α = 90.00
b = 137.500β = 90.00
c = 140.200γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
REFMACrefinement
AMoREphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-09-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance