7E3D

Crystal structure of human acetylcholinesterase

• PDB DOI: https://doi.org/10.2210/pdb7E3D/pdb

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


• Deposited: 2021-02-08 Released: 2022-02-16 
• Deposition Author(s): Dileep, K.V., Ihara, K., Mishima-Tsumagari, C., Kukimoto-Niino, M., Yonemochi, M., Hanada, K., Shirouzu, M., Zhang, K.Y.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.242 
• R-Value Work: 0.203 
• R-Value Observed: 0.205 

Literature

Crystal structure of human acetylcholinesterase in complex with tacrine: Implications for drug discovery

Dileep, K., Ihara, K., Mishima-Tsumagari, C., Kukimoto-Niino, M., Yonemochi, M., Hanada, K., Shirouzu, M., Zhang, K.Y.

(2022) Int J Biol Macromol 210: 172-181

• DOI: https://doi.org/10.1016/j.ijbiomac.2022.05.009

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)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 119.98 kDa 
• Atom Count: 8,528 
• Modelled Residue Count: 1,065 
• Deposited Residue Count: 1,080 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetylcholinesterase	A, B	540	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 GTEx:  ENSG00000087085

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	C, D	3		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G21290RB GlyCosmos:  G21290RB GlyGen:  G21290RB

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PE8	E [auth B]	3,6,9,12,15,18,21-HEPTAOXATRICOSANE-1,23-DIOL C16 H34 O9 GLZWNFNQMJAZGY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.242 
• R-Value Work: 0.203 
• R-Value Observed: 0.205 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104.931	α = 90
b = 104.931	β = 90
c = 322.566	γ = 120

Software Package:

Software Name	Purpose
XDS	data reduction
Aimless	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2022-02-16 
Deposition Author(s): Dileep, K.V., Ihara, K., Mishima-Tsumagari, C., Kukimoto-Niino, M., Yonemochi, M., Hanada, K., Shirouzu, M., Zhang, K.Y.J.

Revision History  

• Version 1.0: 2022-02-16
  Type: Initial release
  
• Version 1.1: 2023-03-01
  Changes: Database references
• Version 1.2: 2023-11-29
  Changes: Data collection, Refinement description