3N9S

Class II fructose-1,6-bisphosphate aldolase from helicobacter pylori in complex with N-(4-hydroxybutyl)- glycolohydroxamic acid bis-phosphate, a competitive inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.165 
  • R-Value Observed: 0.169 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Rational Design, Synthesis, and Evaluation of New Selective Inhibitors of Microbial Class II (Zinc Dependent) Fructose Bis-phosphate Aldolases.

Daher, R.Fonvielle, M.Gest, P.M.Guerin, M.E.Jackson, M.Sygusch, J.Therisod, M.

(2010) J Med Chem 53: 7836-7842

  • DOI: https://doi.org/10.1021/jm1009814
  • Primary Citation of Related Structures:  
    3N9R, 3N9S

  • PubMed Abstract: 

    We report the synthesis and biochemical evaluation of several selective inhibitors of class II (zinc dependent) fructose bis-phosphate aldolases (Fba). The products were designed as transition-state analogues of the catalyzed reaction, structurally related to the substrate fructose bis-phosphate (or sedoheptulose bis-phosphate) and based on an N-substituted hydroxamic acid, as a chelator of the zinc ion present in active site. The compounds synthesized were tested on class II Fbas from various pathogenic microorganisms and, by comparison, on a mammalian class I Fba. The best inhibitor shows K(i) against class II Fbas from various pathogens in the nM range, with very high selectivity (up to 10(5)). Structural analyses of inhibitors in complex with aldolases rationalize and corroborate the enzymatic kinetics results. These inhibitors represent lead compounds for the preparation of new synthetic antibiotics, notably for tuberculosis prophylaxis.


  • Organizational Affiliation

    ECBB, ICMMO, Univ Paris-Sud, UMR 8182, F-91405 Orsay, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Fructose-bisphosphate aldolase
A, B
307Helicobacter pylori 51Mutation(s): 0 
Gene Names: ALF_HELPY
EC: 4.1.2.13
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
TD4
Query on TD4

Download Ideal Coordinates CCD File 
C [auth A],
J [auth B]
4-{hydroxy[(phosphonooxy)acetyl]amino}butyl dihydrogen phosphate
C6 H15 N O10 P2
GZQWGEFAYHQQKX-UHFFFAOYSA-N
ZN
Query on ZN

Download Ideal Coordinates CCD File 
D [auth A],
G [auth B]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
CA
Query on CA

Download Ideal Coordinates CCD File 
E [auth A],
H [auth B]
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
NA
Query on NA

Download Ideal Coordinates CCD File 
F [auth A],
I [auth B]
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
TD4 PDBBind:  3N9S Kd: 5500 (nM) from 1 assay(s)
BindingDB:  3N9S IC50: 131 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.165 
  • R-Value Observed: 0.169 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.959α = 90
b = 83.436β = 90
c = 139.985γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
XSCALEdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-11-17
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2023-09-06
    Changes: Data collection, Database references, Derived calculations, Refinement description