2qc1

X-ray diffraction
1.94Å resolution

Crystal structure of the extracellular domain of the nicotinic acetylcholine receptor 1 subunit bound to alpha-bungarotoxin at 1.9 A resolution

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-138166 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (3 distinct):
Alpha-bungarotoxin isoform V31 Chain: A
Molecule details ›
Chain: A
Length: 74 amino acids
Theoretical weight: 8.03 KDa
Source organism: Bungarus multicinctus
UniProt:
  • Canonical: P60616 (Residues: 22-95; Coverage: 100%)
Sequence domains: Snake toxin cobra-type
Structure domains: CD59
Acetylcholine receptor subunit alpha Chain: B
Molecule details ›
Chain: B
Length: 212 amino acids
Theoretical weight: 24.73 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: P04756 (Residues: 21-231; Coverage: 48%)
Gene names: Acra, Chrna1
Sequence domains: Neurotransmitter-gated ion-channel ligand binding domain
Structure domains: Neurotransmitter-gated ion-channel ligand-binding domain

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG, MAN
No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: P212121
Unit cell:
a: 42.498Å b: 85.68Å c: 95.15Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.214 0.214 0.233
Expression system: Escherichia coli