Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 5-mer - A4B1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 5-mer - A3B1C1 

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

Biological Assembly 2  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 5-mer - A4B1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 5-mer - A3B1C1 

Biological assembly 2 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 44.40 kDa 
• Atom Count: 2603 
• Residue Count: 278 
• Unique protein chains: 2

1VZJ

Structure of the tetramerization domain of acetylcholinesterase: four-fold interaction of a WWW motif with a left-handed polyproline helix

• DOI: 10.2210/pdb1VZJ/pdb

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


• Deposited: 2004-05-20 Released: 2005-01-10 
• Deposition Author(s): Dvir, H., Harel, M., Bon, S., Liu, W.-Q., Vidal, M., Garbay, C., Sussman, J.L., Massoulie, J., Silman, I.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.259 
• R-Value Work: 0.247 
• R-Value Observed: 0.247 

Literature

The Synaptic Acetylcholinesterase Tetramer Assembles Around a Polyproline-II Helix

Dvir, H., Harel, M., Bon, S., Liu, W.-Q., Vidal, M., Garbay, C., Sussman, J.L., Massoulie, J., Silman, I.

(2004) EMBO J 23: 4394

• PubMed: 15526038 
• DOI: 10.1038/sj.emboj.7600425
• Primary Citation of Related Structures:  
  1VZJ


• PubMed Abstract: 
  

Functional localization of acetylcholinesterase (AChE) in vertebrate muscle and brain depends on interaction of the tryptophan amphiphilic tetramerization (WAT) sequence, at the C-terminus of its major splice variant (T), with a proline-rich attachment domain (PRAD), of the anchoring proteins, collagenous (ColQ) and proline-rich membrane anchor. The crystal structure of the WAT/PRAD complex reveals a novel supercoil structure in which four parallel WAT chains form a left-handed superhelix around an antiparallel left-handed PRAD helix resembling polyproline II. The WAT coiled coils possess a WWW motif making repetitive hydrophobic stacking and hydrogen-bond interactions with the PRAD. The WAT chains are related by an approximately 4-fold screw axis around the PRAD. Each WAT makes similar but unique interactions, consistent with an asymmetric pattern of disulfide linkages between the AChE tetramer subunits and ColQ. The P59Q mutation in ColQ, which causes congenital endplate AChE deficiency, and is located within the PRAD, disrupts crucial WAT-WAT and WAT-PRAD interactions. A model is proposed for the synaptic AChE(T) tetramer.

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Organizational Affiliation: 

Dapartment of Structural Biology, Weizmann Institute of Science, Rehovot, Israel.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ACETYLCHOLINESTERASE	A, B, C, D, E, F, G, H	40	Homo sapiens	Mutation(s): 0  Gene Names: ACHE EC: 3.1.1.7
Find proteins for P22303 (Homo sapiens) Explore P22303  Go to UniProtKB:  P22303
NIH Common Fund Data Resources
PHAROS  P22303 GTEx  ENSG00000087085

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ACETYLCHOLINESTERASE COLLAGENIC TAIL PEPTIDE	I, J	15	Homo sapiens	Mutation(s): 0  Gene Names: COLQ
Find proteins for Q9Y215 (Homo sapiens) Explore Q9Y215  Go to UniProtKB:  Q9Y215
NIH Common Fund Data Resources
PHAROS  Q9Y215 GTEx  ENSG00000206561

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A,B,C,D,E,F,G,H	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.259 
• R-Value Work: 0.247 
• R-Value Observed: 0.247 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 53.73	α = 90
b = 58.79	β = 111.38
c = 58.8	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
SOLVE/RESOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2004-05-20 
• Released Date: 2005-01-10 
Deposition Author(s): Dvir, H., Harel, M., Bon, S., Liu, W.-Q., Vidal, M., Garbay, C., Sussman, J.L., Massoulie, J., Silman, I.

Revision History 

• Version 1.0: 2005-01-10
  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: 2019-10-16
  Changes: Data collection, Derived calculations, Other