7AIU

Crystal structure of Torpedo Californica acetylcholinesterase in complex with 8-[(3-Chloro-6,7,10,11-tetrahydro-9-methyl-7,11-methanocycloocta[b]quinolin-12-yl)amino]-N-(4-hydroxy-3-methoxybenzyl)octanamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.202 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Discovery of a Potent Dual Inhibitor of Acetylcholinesterase and Butyrylcholinesterase with Antioxidant Activity that Alleviates Alzheimer-like Pathology in Old APP/PS1 Mice.

Viayna, E.Coquelle, N.Cieslikiewicz-Bouet, M.Cisternas, P.Oliva, C.A.Sanchez-Lopez, E.Ettcheto, M.Bartolini, M.De Simone, A.Ricchini, M.Rendina, M.Pons, M.Firuzi, O.Perez, B.Saso, L.Andrisano, V.Nachon, F.Brazzolotto, X.Garcia, M.L.Camins, A.Silman, I.Jean, L.Inestrosa, N.C.Colletier, J.P.Renard, P.Y.Munoz-Torrero, D.

(2021) J Med Chem 64: 812-839

  • DOI: https://doi.org/10.1021/acs.jmedchem.0c01775
  • Primary Citation of Related Structures:  
    7AIS, 7AIT, 7AIU, 7AIV, 7AIW, 7AIX, 7AIY

  • PubMed Abstract: 

    The combination of the scaffolds of the cholinesterase inhibitor huprine Y and the antioxidant capsaicin results in compounds with nanomolar potencies toward human acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) that retain or improve the antioxidant properties of capsaicin. Crystal structures of their complexes with AChE and BChE revealed the molecular basis for their high potency. Brain penetration was confirmed by biodistribution studies in C57BL6 mice, with one compound ( 5i ) displaying better brain/plasma ratio than donepezil. Chronic treatment of 10 month-old APP/PS1 mice with 5i (2 mg/kg, i.p., 3 times per week, 4 weeks) rescued learning and memory impairments, as measured by three different behavioral tests, delayed the Alzheimer-like pathology progression, as suggested by a significantly reduced Aβ42/Aβ40 ratio in the hippocampus, improved basal synaptic efficacy, and significantly reduced hippocampal oxidative stress and neuroinflammation. Compound 5i emerges as an interesting anti-Alzheimer lead with beneficial effects on cognitive symptoms and on some underlying disease mechanisms.


  • Organizational Affiliation

    Laboratory of Medicinal Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona, Av. Joan XXIII 27-31, E-08028 Barcelona, Spain.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Acetylcholinesterase
A, B
586Tetronarce californicaMutation(s): 0 
EC: 3.1.1.7
UniProt
Find proteins for P04058 (Tetronarce californica)
Explore P04058 
Go to UniProtKB:  P04058
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04058
Glycosylation
Glycosylation Sites: 1
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
8UQ (Subject of Investigation/LOI)
Query on 8UQ

Download Ideal Coordinates CCD File 
H [auth A],
R [auth B]
8-[(3-Chloro-6,7,10,11-tetrahydro-9-methyl-7,11-methanocycloocta[b]quinolin-12-yl)amino]-N-(4-hydroxy-3-methoxybenzyl)octanamide
C33 H42 Cl N3 O3
OMKWWMMJFOSSRE-OEMFJLHTSA-N
NAG
Query on NAG

Download Ideal Coordinates CCD File 
E [auth A],
F [auth A],
G [auth A],
P [auth B],
Q [auth B]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
PEG
Query on PEG

Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
I [auth A]
J [auth A]
K [auth A]
C [auth A],
D [auth A],
I [auth A],
J [auth A],
K [auth A],
N [auth B],
O [auth B],
S [auth B],
T [auth B]
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
L [auth A],
M [auth A],
U [auth B]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.202 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.9α = 90
b = 105.67β = 90
c = 150.72γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-10-06
    Type: Initial release
  • Version 1.1: 2022-05-04
    Changes: Database references
  • Version 1.2: 2024-01-31
    Changes: Data collection, Refinement description