5DTJ

Crystal Structure of dfp-inhibited mouse acetylcholinesterase in complex with the reactivator SP-134

  • Classification: Hydrolase/Hydrolase Inhibitor
  • Organism(s): Mus musculus
  • Expression System: Trichoplusia ni

  • Deposited: 2015-09-18 Released: 2015-10-21 
  • Deposition Author(s): Tran, T.H., Tong, L.
  • Funding Organization(s): Department of Defense (United States); National Institutes of Health/National Institute of Neurological Disorders and Stroke; National Institutes of Health/Office of the Director 

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.179 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Discovery of New Classes of Compounds that Reactivate Acetylcholinesterase Inhibited by Organophosphates.

Katz, F.S.Pecic, S.Tran, T.H.Trakht, I.Schneider, L.Zhu, Z.Ton-That, L.Luzac, M.Zlatanic, V.Damera, S.Macdonald, J.Landry, D.W.Tong, L.Stojanovic, M.N.

(2015) Chembiochem 16: 2205-2215

  • DOI: 10.1002/cbic.201500348
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Acetylcholinesterase (AChE) that has been covalently inhibited by organophosphate compounds (OPCs), such as nerve agents and pesticides, has traditionally been reactivated by using nucleophilic oximes. There is, however, a clearly recognized need for ...

    Acetylcholinesterase (AChE) that has been covalently inhibited by organophosphate compounds (OPCs), such as nerve agents and pesticides, has traditionally been reactivated by using nucleophilic oximes. There is, however, a clearly recognized need for new classes of compounds with the ability to reactivate inhibited AChE with improved in vivo efficacy. Here we describe our discovery of new functional groups--Mannich phenols and general bases--that are capable of reactivating OPC--inhibited AChE more efficiently than standard oximes and we describe the cooperative mechanism by which these functionalities are delivered to the active site. These discoveries, supported by preliminary in vivo results and crystallographic data, significantly broaden the available approaches for reactivation of AChE.


    Organizational Affiliation

    Department of Medicine/Division of Experimental Therapeutics, Columbia University Medical Center, 630 W. 168th Street, New York, NY 10032 (USA).




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Acetylcholinesterase
A, B
545Mus musculusMutation(s): 0 
Gene Names: Ache
EC: 3.1.1.7
Find proteins for P21836 (Mus musculus)
Go to UniProtKB:  P21836
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
5G8
Query on 5G8

Download SDF File 
Download CCD File 
A, B
1-[5-(2,4-dichlorophenoxy)pentyl]-1H-imidazole
C14 H16 Cl2 N2 O
RCLGZIGOWPMCRV-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MIS
Query on MIS
A, B
L-PEPTIDE LINKINGC6 H14 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.179 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 79.487α = 90.00
b = 113.367β = 90.00
c = 227.117γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PDB_EXTRACTdata extraction
PHENIXrefinement
MOLREPphasing
HKL-2000data reduction
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2015-09-18 
  • Released Date: 2015-10-21 
  • Deposition Author(s): Tran, T.H., Tong, L.

Funding OrganizationLocationGrant Number
Department of Defense (United States)United StatesN000141110900
National Institutes of Health/National Institute of Neurological Disorders and StrokeUnited States5R21NS08079002
National Institutes of Health/Office of the DirectorUnited States1S10OD01812101

Revision History 

  • Version 1.0: 2015-10-21
    Type: Initial release
  • Version 1.1: 2015-10-28
    Type: Source and taxonomy
  • Version 1.2: 2017-09-06
    Type: Author supporting evidence, Derived calculations
  • Version 1.3: 2019-04-10
    Type: Author supporting evidence, Data collection