4TXE

ScCTS1 in complex with compound 5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.191 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.162 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Screening-based discovery of Aspergillus fumigatus plant-type chitinase inhibitors

Lockhart, D.E.Schuettelkopf, A.W.Blair, D.E.van Aalten, D.M.F.

(2014) FEBS Lett 588: 3282

  • DOI: 10.1016/j.febslet.2014.07.015
  • Primary Citation of Related Structures:  
    4TXE, 4TX6

  • PubMed Abstract: 
  • A limited therapeutic arsenal against increasing clinical disease due to Aspergillus spp. necessitates urgent characterisation of new antifungal targets. Here we describe the discovery of novel, low micromolar chemical inhibitors of Aspergillus fumigatus family 18 plant-type chitinase A1 (AfChiA1) by high-throughput screening (HTS) ...

    A limited therapeutic arsenal against increasing clinical disease due to Aspergillus spp. necessitates urgent characterisation of new antifungal targets. Here we describe the discovery of novel, low micromolar chemical inhibitors of Aspergillus fumigatus family 18 plant-type chitinase A1 (AfChiA1) by high-throughput screening (HTS). Analysis of the binding mode by X-ray crystallography confirmed competitive inhibition and kinetic studies revealed two compounds with selectivity towards fungal plant-type chitinases. These inhibitors provide new chemical tools to probe the effects of chitinase inhibition on A. fumigatus growth and virulence, presenting attractive starting points for the development of further potent drug-like molecules.


    Organizational Affiliation

    Division of Molecular Microbiology, College of Life Sciences, University of Dundee, Dundee DD1 5EH, United Kingdom; MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dundee DD1 5EH, United Kingdom. Electronic address: dmfvanaalten@dundee.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
EndochitinaseA294Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: CTS1SCW2YLR286CL8003.13
EC: 3.2.1.14
UniProt
Find proteins for P29029 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P29029 
Go to UniProtKB:  P29029
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
38F
Query on 38F

Download Ideal Coordinates CCD File 
B [auth A](2S)-1-(2,3-dihydro-1H-inden-2-ylamino)-3-(3,4-dimethylphenoxy)propan-2-ol
C20 H25 N O2
ZDNVKJORSKCXID-IBGZPJMESA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
38FIC50:  2400   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.191 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.162 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.773α = 90
b = 112.159β = 90
c = 37.164γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-08-06
    Type: Initial release