2BAG

3D Structure of Torpedo californica acetylcholinesterase complexed with Ganstigmine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Determinants of Torpedo californica Acetylcholinesterase Inhibition by the Novel and Orally Active Carbamate Based Anti-Alzheimer Drug Ganstigmine (CHF-2819)

Bartolucci, C.Siotto, M.Ghidini, E.Amari, G.Bolzoni, P.T.Racchi, M.Villetti, G.Delcanale, M.Lamba, D.

(2006) J.Med.Chem. 49: 5051-5058

  • DOI: 10.1021/jm060293s

  • PubMed Abstract: 
  • Ganstigmine is an orally active, geneserine derived, carbamate-based acetylcholinesterase inhibitor developed for the treatment of Alzheimer's disease. The crystal structure of the ganstigmine conjugate with Torpedo californica acetylcholinesterase ( ...

    Ganstigmine is an orally active, geneserine derived, carbamate-based acetylcholinesterase inhibitor developed for the treatment of Alzheimer's disease. The crystal structure of the ganstigmine conjugate with Torpedo californica acetylcholinesterase (TcAChE) has been determined at 2.40 A resolution, and a detailed structure-based analysis of the in vitro and ex vivo anti-AChE activity by ganstigmine and by new geneserine derivatives is presented. The carbamoyl moiety is covalently bound to the active-site serine, whereas the leaving group geneseroline is not retained in the catalytic pocket. The nitrogen atom of the carbamoyl moiety of ganstigmine is engaged in a key hydrogen-bonding interaction with the active site histidine (His440). This result offers an explanation for the inactivation of the catalytic triad and may account for the long duration of action of ganstigmine in vivo. The 3D structure also provides a structural framework for the design of compounds with improved binding affinity and pharmacological properties.


    Related Citations: 
    • Kinetic and structural studies on the interaction of cholinesterases with the anti-Alzheimer drug rivastigmine
      Bar-On, P.,Millard, C.B.,Harel, M.,Dvir, H.,Enz, A.,Sussman, J.L.,Silman, I.
      (2002) Biochemistry 41: 3555
    • Back Door opening implied by the crystal structure of a carbamoylated acetylcholinesterase
      Bartolucci, C.,Perola, E.,Cellai, L.,Brufani, M.,Lamba, D.
      (1999) Biochemistry 38: 5714
    • Long chain analogs of physostigmine as potential drugs for Alzheimer's disease: new insights into the mechanism of action in the inhibition of acetylcholinesterase
      Perola, E.,Cellai, L.,Lamba, D.,Filocamo, L.,Brufani, M.
      (1997) Biochim.Biophys.Acta 1343: 41


    Organizational Affiliation

    Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Area della Ricerca di Roma, P O Box 10, I-00016 Monterotondo Stazione (Roma), Italy.




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 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GSG
Query on GSG

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Download CCD File 
A
1S,3AS,8AS-TRIMETHYL-1-OXIDO-1,2,3,3A,8,8A-HEXAHYDROPYRROLO[2,3-B]INDOL-5-YL 2-ETHYLPHENYLCARBAMATE
GANSTIGMINE; (-)-(3AS,8AS,1S)-1,2,3,3A,8A-HEXAHYDRO-1,3A,8-TRIMETHYLPYRROLO[2,3-B]INDOL-5-OL-2'-ETHYLPHENYLCARBAMATE N-OXIDE HYDROCHLORIDE
C22 H27 N3 O3
MVHRCJQCKYPDRL-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

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Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
1PE
Query on 1PE

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Download CCD File 
A
PENTAETHYLENE GLYCOL
PEG400
C10 H22 O6
JLFNLZLINWHATN-UHFFFAOYSA-N
 Ligand Interaction
MES
Query on MES

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Download CCD File 
A
2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.190 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 111.736α = 90.00
b = 111.736β = 90.00
c = 136.824γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
AMoREphasing
CNSrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-08-29
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance