3PEO | pdb_00003peo

Crystal structure of acetylcholine binding protein complexed with metocurine

• PDB DOI: https://doi.org/10.2210/pdb3PEO/pdb

• Classification: CHOLINE-BINDING PROTEIN
• Organism(s): Aplysia californica
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2010-10-27 Released: 2011-10-12 
• Deposition Author(s): Talley, T.T., Harel, M., Yamauchi, G.J., Radic, Z., Hansen, S., Huxford, T., Taylor, P.W.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 
  0.255 (Depositor), 0.254 (DCC) 
• R-Value Work: 
  0.208 (Depositor), 0.207 (DCC) 
• R-Value Observed: 
  0.208 (Depositor) 

Starting Model: experimental

Literature

The curare alkaloids: analyzing the poses of complexes with the acetylcholine binding protein in relation to structure and binding energetics

Talley, T.T., Harel, M., Yamauchi, G.J., Radic, Z., Hansen, S., Huxford, T., Taylor, P.W.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C5  (Explore in 3D)
Global Stoichiometry: Homo 5-mer - A5 

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

Biological Assembly 2  

Global Symmetry: Cyclic - C5  (Explore in 3D)
Global Stoichiometry: Homo 5-mer - A5 

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

Macromolecule Content 

• Total Structure Weight: 264.9 kDa 
• Atom Count: 18,224 
• Modeled Residue Count: 2,062 
• Deposited Residue Count: 2,280 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Soluble acetylcholine receptor	A, B, C, D, E, F, G, H, I, J	228	Aplysia californica	Mutation(s): 0
UniProt
Find proteins for Q8WSF8 (Aplysia californica) Explore Q8WSF8  Go to UniProtKB:  Q8WSF8

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CU9	K [auth A], L [auth B], M [auth C], N [auth D], O [auth F], P [auth F], Q [auth H], R [auth J]	6,6',7',12'-tetramethoxy-2,2,2',2'-tetramethyltubocuraran-2,2'-diium C40 H48 N2 O6 JFXBEKISTKFVAB-AJQTZOPKSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free:  0.255 (Depositor), 0.254 (DCC) 
• R-Value Work:  0.208 (Depositor), 0.207 (DCC) 
• R-Value Observed: 0.208 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 124.699	α = 90
b = 147.574	β = 90
c = 148.857	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-10-12 
Deposition Author(s): Talley, T.T., Harel, M., Yamauchi, G.J., Radic, Z., Hansen, S., Huxford, T., Taylor, P.W.

Revision History  

• Version 1.0: 2011-10-12
  Type: Initial release
  
• Version 1.1: 2021-03-31
  Changes: Database references, Derived calculations, Source and taxonomy, Structure summary
• Version 1.2: 2023-09-06
  Changes: Data collection, Database references, Refinement description
• Version 1.3: 2024-10-09
  Changes: Structure summary