4PQE

Crystal Structure of Human Acetylcholinesterase

• PDB DOI:  https://doi.org/10.2210/pdb4PQE/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2014-03-02 Released: 2015-04-08 
• Deposition Author(s): Dym, O., Unger, T., Toker, L., Silman, I., Sussman, J.L., Israel Structural Proteomics Center (ISPC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.218 
• R-Value Work: 0.185 
• R-Value Observed: 0.187 

Literature

Crystal Structure of Human Acetylcholinesterase

Dym, O., Unger, T., Toker, L., Silman, I., Sussman, J.L., Israel Structural Proteomics Center (ISPC)

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 59.58 kDa 
• Atom Count: 4,099 
• Modelled Residue Count: 528 
• Deposited Residue Count: 543 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetylcholinesterase	A	543	Homo sapiens	Mutation(s): 0  Gene Names: ACHE EC: 3.1.1.7
UniProt & NIH Common Fund Data Resources
Find proteins for P22303 (Homo sapiens) Explore P22303  Go to UniProtKB:  P22303
PHAROS:  P22303

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.218 
• R-Value Work: 0.185 
• R-Value Observed: 0.187 
• Space Group: P 3₁ 1 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 125.307	α = 90
b = 125.307	β = 90
c = 131.396	γ = 120

Software Package:

Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-04-08 
Deposition Author(s): Dym, O., Unger, T., Toker, L., Silman, I., Sussman, J.L., Israel Structural Proteomics Center (ISPC)

Revision History  

• Version 1.0: 2015-04-08
  Type: Initial release
  
• Version 1.1: 2023-09-20
  Changes: Data collection, Database references, Derived calculations, Refinement description