1GTZ

Structure of STREPTOMYCES COELICOLOR TYPE II DEHYDROQUINASE R23A MUTANT IN COMPLEX WITH DEHYDROSHIKIMATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.179 

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

  • DOI: 10.1016/s0969-2126(02)00747-5
  • Primary Citation of Related Structures:  
    1D0I, 1GU1, 1GU0, 1GTZ

  • 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 acid ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
3-DEHYDROQUINATE DEHYDRATASE
A, B, C, D, E, F, G, H
A, B, C, D, E, F, G, H, I, J, K, L
156Streptomyces coelicolorMutation(s): 1 
EC: 4.2.1.10
Find proteins for P15474 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145))
Explore P15474 
Go to UniProtKB:  P15474
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DHK
Query on DHK

Download Ideal Coordinates CCD File 
AA [auth K] , BA [auth L] , N [auth A] , O [auth B] , P [auth C] , R [auth D] , S [auth E] , T [auth F] , 
AA [auth K],  BA [auth L],  N [auth A],  O [auth B],  P [auth C],  R [auth D],  S [auth E],  T [auth F],  V [auth G],  W [auth H],  X [auth I],  Z [auth J]
3-DEHYDROSHIKIMATE
C7 H10 O5
YVYKOQWMJZXRRM-UYFOZJQFSA-N
 Ligand Interaction
TRS
Query on TRS

Download Ideal Coordinates CCD File 
M [auth A], Q [auth D], U [auth G], Y [auth J]2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
C4 H12 N O3
LENZDBCJOHFCAS-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.179 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.1α = 90
b = 136.2β = 101.28
c = 96.7γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-06-27
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance