5O9P

Crystal structure of Gas2 in complex with compound 10


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.212 

wwPDB Validation 3D Report Full Report



Literature

Inhibitors against Fungal Cell Wall Remodeling Enzymes.

Delso, I.Valero-Gonzalez, J.Gomollon-Bel, F.Castro-Lopez, J.Fang, W.Navratilova, I.van Aalten, D.M.F.Tejero, T.Merino, P.Hurtado-Guerrero, R.

(2018) ChemMedChem 13: 128-132

  • DOI: 10.1002/cmdc.201700720
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Fungal β-1,3-glucan glucanosyltransferases are glucan-remodeling enzymes that play important roles in cell wall integrity, and are essential for the viability of pathogenic fungi and yeasts. As such, they are considered possible drug targets, althoug ...

    Fungal β-1,3-glucan glucanosyltransferases are glucan-remodeling enzymes that play important roles in cell wall integrity, and are essential for the viability of pathogenic fungi and yeasts. As such, they are considered possible drug targets, although inhibitors of this class of enzymes have not yet been reported. Herein we report a multidisciplinary approach based on a structure-guided design using a highly conserved transglycosylase from Sacharomyces cerevisiae, that leads to carbohydrate derivatives with high affinity for Aspergillus fumigatus Gel4. We demonstrate by X-ray crystallography that the compounds bind in the active site of Gas2/Gel4 and interact with the catalytic machinery. The topological analysis of noncovalent interactions demonstrates that the combination of a triazole with positively charged aromatic moieties are important for optimal interactions with Gas2/Gel4 through unusual pyridinium cation-π and face-to-face π-π interactions. The lead compound is capable of inhibiting AfGel4 with an IC 50 value of 42 μm.


    Organizational Affiliation

    Fundación ARAID, 50018, Zaragoza, Spain.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
1,3-beta-glucanosyltransferase GAS2
A
555Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: GAS2YLR343WL8300.5
EC: 2.4.1
Find proteins for Q06135 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q06135
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
9P8
Query on 9P8

Download CCD File 
A
(2~{R},3~{S},4~{S},5~{R},6~{S})-2-(hydroxymethyl)-6-[(2~{R},3~{R},4~{S},5~{R},6~{S})-2-(hydroxymethyl)-6-[(2~{R},3~{R},4~{S},5~{R},6~{R})-2-(hydroxymethyl)-3,5-bis(oxidanyl)-6-[4-(pyridin-2-ylmethoxymethyl)-1,2,3-triazol-1-yl]oxan-4-yl]oxy-3,5-bis(oxidanyl)oxan-4-yl]oxy-oxane-3,4,5-triol
C27 H40 N4 O16
GZCRLDXRIWVPBY-FLQYNTDFSA-N
 Ligand Interaction
EDO
Query on EDO

Download CCD File 
A
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
9P8Kd:  8060.00048828125   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.212 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.067α = 90
b = 70.953β = 90
c = 150.99γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-05-02
    Type: Initial release