5HFA

Crystal structure of human acetylcholinesterase in complex with paraoxon and 2-PAM

• PDB DOI: https://doi.org/10.2210/pdb5HFA/pdb

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


• Deposited: 2016-01-06 Released: 2016-06-22 
• Deposition Author(s): Franklin, M.F., Rudolph, M.J., Ginter, C., Cassidy, M.S., Cheung, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.224 
• R-Value Work: 0.181 
• R-Value Observed: 0.183 

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: 121.26 kDa 
• Atom Count: 9,173 
• Modelled Residue Count: 1,071 
• Deposited Residue Count: 1,084 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetylcholinesterase	A, B	542	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 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	J [auth B]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
FP1	H [auth A], I [auth A], O [auth B]	N-hydroxy-1-(1-methylpyridin-2(1H)-ylidene)methanamine C7 H10 N2 O YDWKOUCMHAMECR-SREVYHEPSA-N
DEP	E [auth A], K [auth B]	DIETHYL PHOSPHONATE C4 H11 O3 P MJUJXFBTEFXVKU-UHFFFAOYSA-N
EDO	F [auth A], G [auth A], L [auth B], M [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
NO3	N [auth B]	NITRATE ION N O3 NHNBFGGVMKEFGY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.224 
• R-Value Work: 0.181 
• R-Value Observed: 0.183 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104.803	α = 90
b = 104.803	β = 90
c = 323.462	γ = 120

Software Package:

Software Name	Purpose
HKL-2000	data collection
SCALEPACK	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-06-22 
Deposition Author(s): Franklin, M.F., Rudolph, M.J., Ginter, C., Cassidy, M.S., Cheung, J.

Revision History  

• Version 1.0: 2016-06-22
  Type: Initial release
  
• Version 1.1: 2016-08-24
  Changes: Database references
• Version 1.2: 2017-11-22
  Changes: Database references, Derived calculations, Refinement description
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-09-27
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary