1W4L

Complex of TcAChE with bis-acting galanthamine derivative


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

The complex of a bivalent derivative of galanthamine with torpedo acetylcholinesterase displays drastic deformation of the active-site gorge: implications for structure-based drug design.

Greenblatt, H.M.Guillou, C.Guenard, D.Argaman, A.Botti, S.Badet, B.Thal, C.Silman, I.Sussman, J.L.

(2004) J.Am.Chem.Soc. 126: 15405-15411

  • DOI: 10.1021/ja0466154
  • Primary Citation of Related Structures:  
  • Also Cited By: 3I6Z, 3I6M, 1ZGC

  • PubMed Abstract: 
  • Bifunctional derivatives of the alkaloid galanthamine, designed to interact with both the active site of the enzyme acetylcholinesterase (AChE) and its peripheral cation binding site, have been assayed with Torpedo californica AChE (TcAChE), and the ...

    Bifunctional derivatives of the alkaloid galanthamine, designed to interact with both the active site of the enzyme acetylcholinesterase (AChE) and its peripheral cation binding site, have been assayed with Torpedo californica AChE (TcAChE), and the three-dimensional structures of their complexes with the enzyme have been solved by X-ray crystallography. Differences were noted between the IC(50) values obtained for TcAChE and those for Electrophorus electricus AChE. These differences are ascribed to sequence differences in one or two residues lining the active-site gorge of the enzyme. The binding of one of the inhibitors disrupts the native conformation of one wall of the gorge, formed by the loop Trp279-Phe290. It is proposed that flexibility of this loop may permit the binding of inhibitors such as galanthamine, which are too bulky to penetrate the narrow neck of the gorge formed by Tyr121 and Phe330 as seen in the crystal structure.


    Related Citations: 
    • Potent Acetylcholinesterase Inhibitors: Design, Synthesis, and Structure-Activity Relationships of Bis-Interacting Ligands in the Galanthamine Series
      Mary, A.,Renko, D.Z.,Guillou, C.,Thal, C.
      (1998) Bioorg.Med.Chem. 6: 1835


    Organizational Affiliation

    Departments of Structural Biology and Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ACETYLCHOLINESTERASE
A
543Tetronarce 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
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
GL8
Query on GL8

Download SDF File 
Download CCD File 
A
GALANTHAMINE DERIVATIVE
(4AR,6S,8AR)-11-[8-(1,3-DIOXO-1,3-DIHYDRO-2H-ISOINDOL-2-YL)OCTYL]-6-HYDROXY-3-METHOXY-5,6,9,10-TETRAHYDRO-4AH-[1]BENZOFURO[3A,3,2-EF][2]BENZAZEPIN-11-IUM
C32 H37 N2 O5
VLGAHTYYCHWLNI-BHRZLAGCSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
GL8IC50: 4 - 10 nM (100) BINDINGDB
GL8IC50: 4 nM BINDINGMOAD
GL8IC50: 4 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.184 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 111.327α = 90.00
b = 111.327β = 90.00
c = 136.859γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-11-25
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2019-04-03
    Type: Data collection, Derived calculations, Experimental preparation, Other
  • Version 1.4: 2019-04-10
    Type: Data collection, Database references