5OSS

Beta-glucosidase from Thermotoga maritima in complex with Gluco-1H-imidazole


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Gluco-1 H-imidazole: A New Class of Azole-Type beta-Glucosidase Inhibitor.

Schroder, S.P.Wu, L.Artola, M.Hansen, T.Offen, W.A.Ferraz, M.J.Li, K.Y.Aerts, J.M.F.G.van der Marel, G.A.Codee, J.D.C.Davies, G.J.Overkleeft, H.S.

(2018) J Am Chem Soc 140: 5045-5048

  • DOI: 10.1021/jacs.8b02399
  • Primary Citation of Related Structures:  
    5OST, 5OSS

  • PubMed Abstract: 
  • Gluco-azoles competitively inhibit glucosidases by transition-state mimicry and their ability to interact with catalytic acid residues in glucosidase active sites. We noted that no azole-type inhibitors described, to date, possess a protic nitrogen characteristic for 1 H-imidazoles ...

    Gluco-azoles competitively inhibit glucosidases by transition-state mimicry and their ability to interact with catalytic acid residues in glucosidase active sites. We noted that no azole-type inhibitors described, to date, possess a protic nitrogen characteristic for 1 H-imidazoles. Here, we present gluco-1 H-imidazole, a gluco-azole bearing a 1 H-imidazole fused to a glucopyranose-configured cyclitol core, and three close analogues as new glucosidase inhibitors. All compounds inhibit human retaining β-glucosidase, GBA1, with the most potent ones inhibiting this enzyme (deficient in Gaucher disease) on a par with glucoimidazole. None inhibit glucosylceramide synthase, cytosolic β-glucosidase GBA2 or α-glucosidase GAA. Structural, physical and computational studies provide first insights into the binding mode of this conceptually new class of retaining β-glucosidase inhibitors.


    Organizational Affiliation

    Department of Chemistry, York Structural Biology Laboratory , University of York , Heslington, York YO10 5DD , United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-glucosidase AA, B468Thermotoga maritima MSB8Mutation(s): 0 
Gene Names: bglA
EC: 3.2.1.21
UniProt
Find proteins for Q08638 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8))
Explore Q08638 
Go to UniProtKB:  Q08638
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
AEZ (Subject of Investigation/LOI)
Query on AEZ

Download Ideal Coordinates CCD File 
O [auth B](4~{S},5~{S},6~{R},7~{R})-7-(hydroxymethyl)-4,5,6,7-tetrahydro-1~{H}-benzimidazole-4,5,6-triol
C8 H12 N2 O4
MTUBISADCTVQLI-FBXHKNTESA-N
 Ligand Interaction
EDO
Query on EDO

Download Ideal Coordinates CCD File 
C [auth A] , D [auth A] , E [auth A] , F [auth A] , G [auth A] , H [auth A] , I [auth A] , K [auth B] , 
C [auth A],  D [auth A],  E [auth A],  F [auth A],  G [auth A],  H [auth A],  I [auth A],  K [auth B],  L [auth B],  M [auth B]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
J [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
NA
Query on NA

Download Ideal Coordinates CCD File 
N [auth B]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
AEZ Binding MOAD:  5OSS Kd: 2.83e+4 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 94.316α = 90
b = 94.616β = 90
c = 113.443γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DIALSdata reduction
Aimlessdata scaling
REFMACphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research CouncilUnited KingdomERC-2012-AdG-322942

Revision History  (Full details and data files)

  • Version 1.0: 2018-04-11
    Type: Initial release
  • Version 1.1: 2018-04-25
    Changes: Data collection, Database references, Derived calculations, Structure summary
  • Version 1.2: 2018-05-09
    Changes: Data collection, Structure summary