2XNU

Acetylcholine binding protein (AChBP) as template for hierarchical in silico screening procedures to identify structurally novel ligands for the nicotinic receptors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Acetylcholine Binding Protein (Achbp) as Template for Hierarchical in Silico Screening Procedures to Identify Structurally Novel Ligands for the Nicotinic Receptors.

Akdemir, A.Rucktooa, P.Jongejan, A.Elk, R.V.Bertrand, S.Sixma, T.K.Bertrand, D.Smit, A.B.Leurs, R.De Graaf, C.De Esch, I.J.

(2011) Bioorg.Med.Chem. 19: 6107

  • DOI: 10.1016/j.bmc.2011.08.028
  • Primary Citation of Related Structures:  2XNT, 2XNV

  • PubMed Abstract: 
  • Hierarchical in silico screening protocols against the agonist bound acetylcholine binding protein (AChBP) crystal structure were efficient in identifying novel chemotypes for AChBP and the human α7 receptor. Two hit structures were cocrystallized wi ...

    Hierarchical in silico screening protocols against the agonist bound acetylcholine binding protein (AChBP) crystal structure were efficient in identifying novel chemotypes for AChBP and the human α7 receptor. Two hit structures were cocrystallized with AChBP revealing intermolecular cation-π interactions with loop C but lacking intermolecular hydrogen bonding. The compounds act as competitive α7 receptor antagonists and as non-competitive α4β2 receptor inhibitors. These results underline the usability of AChBP in structure-based in silico screening strategies in finding novel scaffolds for the α7 receptor, but also illustrates some limitations of using AChBP as bait to find competitive α4β2 receptor ligands and α7 receptor agonists.


    Organizational Affiliation

    Leiden/Amsterdam Center for Drug Research, Division of Medicinal Chemistry, Faculty of Sciences, VU University Amsterdam, The Netherlands.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SOLUBLE ACETYLCHOLINE RECEPTOR
A, B, C, D, E
236Aplysia californicaN/A
Find proteins for Q8WSF8 (Aplysia californica)
Go to UniProtKB:  Q8WSF8
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
VU3
Query on VU3

Download SDF File 
Download CCD File 
C
2-(2-(4-PHENYLPIPERIDIN-1-YL)ETHYL)-1H-INDOLE
C21 H24 N2
PXWYOBGHDFLUNG-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.207 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 135.741α = 90.00
b = 177.015β = 90.00
c = 129.581γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
BUSTERrefinement
AMoREphasing
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-08-24
    Type: Initial release
  • Version 1.1: 2011-10-12
    Type: Database references