4TVK

TORPEDO CALIFORNICA ACETYLCHOLINESTERASE IN COMPLEX WITH A CHLOROTACRINE-JUGLONE HYBRID INHIBITOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.185 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Multitarget Drug Design Strategy: Quinone-Tacrine Hybrids Designed To Block Amyloid-beta Aggregation and To Exert Anticholinesterase and Antioxidant Effects.

Nepovimova, E.Uliassi, E.Korabecny, J.Pena-Altamira, L.E.Samez, S.Pesaresi, A.Garcia, G.E.Bartolini, M.Andrisano, V.Bergamini, C.Fato, R.Lamba, D.Roberti, M.Kuca, K.Monti, B.Bolognesi, M.L.

(2014) J.Med.Chem. 57: 8576-8589

  • DOI: 10.1021/jm5010804

  • PubMed Abstract: 
  • We report the identification of multitarget anti-Alzheimer compounds designed by combining a naphthoquinone function and a tacrine fragment. In vitro, 15 compounds displayed excellent acetylcholinesterase (AChE) inhibitory potencies and interesting c ...

    We report the identification of multitarget anti-Alzheimer compounds designed by combining a naphthoquinone function and a tacrine fragment. In vitro, 15 compounds displayed excellent acetylcholinesterase (AChE) inhibitory potencies and interesting capabilities to block amyloid-β (Aβ) aggregation. The X-ray analysis of one of those compounds in complex with AChE allowed rationalizing the outstanding activity data (IC50 = 0.72 nM). Two of the compounds showed negligible toxicity in immortalized mouse cortical neurons Neuro2A and primary rat cerebellar granule neurons. However, only one of them was less hepatotoxic than tacrine in HepG2 cells. In T67 cells, both compounds showed antioxidant activity, following NQO1 induction. Furthermore, in Neuro2A, they were able to completely revert the decrease in viability induced by Aβ. Importantly, they crossed the blood-brain barrier, as demonstrated in ex vivo experiments with rats. When ex vivo results were combined with in vitro studies, these two compounds emerged to be promising multitarget lead candidates worthy of further pursuit.


    Organizational Affiliation

    Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna , Via Belmeloro 6, I-40126 Bologna, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Acetylcholinesterase
A
534Tetronarce californicaMutation(s): 0 
Gene Names: ache
EC: 3.1.1.7
Find proteins for P04058 (Tetronarce californica)
Go to UniProtKB:  P04058
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TJH
Query on TJH

Download SDF File 
Download CCD File 
A
2-({2-[(6-chloro-1,2,3,4-tetrahydroacridin-9-yl)amino]ethyl}amino)-5-hydroxynaphthalene-1,4-dione
C25 H22 Cl N3 O3
QOYHHKMVCBONOU-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.185 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 111.940α = 90.00
b = 111.940β = 90.00
c = 137.191γ = 120.00
Software Package:
Software NamePurpose
SCALAdata scaling
MOSFLMdata reduction
REFMACrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-10-08
    Type: Initial release
  • Version 1.1: 2014-11-05
    Type: Database references