› 3u8n

X-ray diffraction
2.35Å resolution

Crystal structure of the acetylcholine binding protein (AChBP) from Lymnaea stagnalis in complex with NS3950 (1-(6-bromo-5-ethoxypyridin-3-yl)-1,4-diazepane)

Released:
DOI: 10.2210/pdb3u8n/pdb
PDB entry 3u8n coloured by chain, front view.
PDB entry 3u8n coloured by chain, side view.
PDB entry 3u8n coloured by chain, top view.
Source organism: Lymnaea stagnalis
Primary publication:
Intersubunit bridge formation governs agonist efficacy at nicotinic acetylcholine α4β2 receptors: unique role of halogen bonding revealed.
Rohde LA, Ahring PK, Jensen ML, Nielsen EØ, Peters D, Helgstrand C, Krintel C, Harpsøe K, Gajhede M, Kastrup JS, Balle T
J Biol Chem 287 4248-59 (2012)
PMID: 22170047

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo pentamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-157653 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Acetylcholine-binding protein Chains: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T
Molecule details ›
Chains: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T
Length: 210 amino acids
Theoretical weight: 23.86 KDa
Source organism: Lymnaea stagnalis
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P58154 (Residues: 20-229; Coverage: 100%)
Sequence domains: Neurotransmitter-gated ion-channel ligand binding domain
Structure domains: Neurotransmitter-gated ion-channel ligand-binding domain

Ligands and Environments

3 bound ligands:
Ligand 09S 20 x 09S
Ligand SO4 6 x SO4
Ligand NAG 3 x NAG
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: MAX II BEAMLINE I911-2
Spacegroup: C2
Unit cell:
a: 239.12Å b: 73.11Å c: 271.84Å
α: 90° β: 97.45° γ: 90°
R-values:
R R work R free
0.198 0.197 0.23
Expression system: Spodoptera frugiperda

Quick links

Citations

5 review citations

Structural Studies of Nicotinic Acetylcholine Receptors: Using Acetylcholine-Binding Protein as a Structural Surrogate.
Shahsavar et al. (2016)
4 more

5 mentions without citation

Crystal structure of Lymnaea stagnalis AChBP complexed with the potent nAChR antagonist DHβE suggests a unique mode of antagonism.
Shahsavar et al. (2012)
4 more