1GPK

Structure of Acetylcholinesterase Complex with (+)-Huperzine A at 2.1A Resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.213
  • R-Value Work: 0.189

Literature

Macromolecules
Sequence Display for 1GPK

Classification: HYDROLASE

Total Structure Weight: 61863.66

Macromolecule Entities
Molecule Chains Length Organism Details
ACETYLCHOLINESTERASE A 537 Tetronarce californica EC#: 3.1.1.7 IUBMB
Fragment: RESIDUES 22-558
Gene Name(s): ache
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
HUP
Query on HUP

A Huperzine A
C15 H18 N2 O
ZRJBHWIHUMBLCN-YQEJDHNASA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
NAG
Query on NAG

A N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
HUP N/A in BindingDB
Ki: 4300 nM  BindingMOAD
Ki: 4300 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.213
  • R-Value Work: 0.189
  • Space Group: P 31 2 1

Unit Cell:

Length (Å) Angle (°)
a = 111.42 α = 90.00
b = 111.42 β = 90.00
c = 137.15 γ = 120.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2001-11-05
  • Released Date: 2002-08-29
  • Deposition author(s): Dvir, H., Harel, M., Chetrit, M., Silman, I., Sussman, J.L.

Revision History

  • 2013-10-23
    Type: Advisory, Atomic model, Derived calculations, Non-polymer description, Other, Refinement description, Version format compliance