3I6Z

3D Structure of Torpedo californica acetylcholinesterase complexed with N-saccharinohexyl-galanthamine

• PDB DOI: https://doi.org/10.2210/pdb3I6Z/pdb

• Classification: HYDROLASE
• Organism(s): Tetronarce californica
• Mutation(s): No 


• Deposited: 2009-07-07 Released: 2010-01-12 
• Deposition Author(s): Lamba, D., Bartolucci, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.19 Å
• R-Value Free: 0.212 
• R-Value Work: 0.183 
• 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: 61.63 kDa 
• Atom Count: 4,699 
• Modelled Residue Count: 532 
• Deposited Residue Count: 534 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetylcholinesterase	A	534	Tetronarce californica	Mutation(s): 0  EC: 3.1.1.7
UniProt
Find proteins for P04058 (Tetronarce californica) Explore P04058  Go to UniProtKB:  P04058

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	B	2		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT GlyCosmos:  G42666HT GlyGen:  G42666HT

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
G6X	D [auth A]	2-{6-[(4aS,6R,8aS)-6-hydroxy-3-methoxy-5,6,9,10-tetrahydro-4aH-[1]benzofuro[3a,3,2-ef][2]benzazepin-11(12H)-yl]hexyl}-1 ,2-benzisothiazol-3(2H)-one 1,1-dioxide C29 H34 N2 O6 S VAEMEXGGRSPJEF-LOMAHXHCSA-N
NAG	C [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
G6X	PDBBind:  3I6Z	IC50: 50 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.19 Å
• R-Value Free: 0.212 
• R-Value Work: 0.183 
• R-Value Observed: 0.183 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 111.339	α = 90
b = 111.339	β = 90
c = 137.207	γ = 120

Software Package:

Software Name	Purpose
MAR345	data collection
AMoRE	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-01-12 
Deposition Author(s): Lamba, D., Bartolucci, C.

Revision History  

• Version 1.0: 2010-01-12
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-01
  Changes: 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: 2023-09-06
  Changes: Data collection, Database references, Refinement description, Structure summary