2VQ6

Torpedo californica acetylcholinesterase complexed with 2-PAM

• PDB DOI: https://doi.org/10.2210/pdb2VQ6/pdb
• Entry: 2VQ6 supersedes: 2VB4

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


• Deposited: 2008-03-11 Released: 2008-05-13 
• Deposition Author(s): Harel, M., Silman, I., Sussman, J.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.71 Å
• R-Value Free: 0.234 
• R-Value Work: 0.171 
• R-Value Observed: 0.174 

Starting Model: experimental

Literature

The Structure of Torpedo Californica Acetylcholinesterase Complexed with 2-Pam

Harel, M., Silman, I., Sussman, J.L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 62 kDa 
• Atom Count: 4,377 
• Modelled Residue Count: 529 
• Deposited Residue Count: 543 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ACETYLCHOLINESTERASE	A	543	Tetronarce californica	Mutation(s): 0  EC: 3.1.1.7
UniProt
Find proteins for P04058 (Tetronarce californica) Explore P04058  Go to UniProtKB:  P04058
Glycosylation
Glycosylation Sites: 2

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	D [auth A], E [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
FP1	B [auth A]	N-hydroxy-1-(1-methylpyridin-2(1H)-ylidene)methanamine C7 H10 N2 O YDWKOUCMHAMECR-SREVYHEPSA-N
SO4	C [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.71 Å
• R-Value Free: 0.234 
• R-Value Work: 0.171 
• R-Value Observed: 0.174 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 113.95	α = 90
b = 113.95	β = 90
c = 138.05	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
PROTIN	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-05-13 
Deposition Author(s): Harel, M., Silman, I., Sussman, J.L.
• This entry supersedes: 2VB4

Revision History  

• Version 1.0: 2008-05-13
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Data collection, Derived calculations, Other, Structure summary
• Version 1.4: 2023-12-13
  Changes: Data collection, Database references, Refinement description, Structure summary
• Version 1.5: 2024-10-23
  Changes: Structure summary