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X-ray structure of acetylcholine binding protein (AChBP) in complex with IOTA739

X-ray diffraction
3Å resolution
PDB entry 8q1t coloured by chain, front view.
PDB entry 8q1t coloured by chain, side view.
PDB entry 8q1t coloured by chain, top view.
Source organism: Lymnaea stagnalis
Assembly composition:
homo pentamer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Acetylcholine binding protein complex
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Multimeric state: homo pentamer
Accessible surface area: 42737.12 Å2
Buried surface area: 14261.73 Å2
Dissociation area: 6,660.29 Å2
Dissociation energy (ΔGdiss): 18.35 kcal/mol
Dissociation entropy (TΔSdiss): 54.34 kcal/mol
Symmetry number: 5
PDBe Complex ID: PDB-CPX-157653
Complex Portal ID: CPX-259
Assembly 2
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Assembly Name: Acetylcholine binding protein complex
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Multimeric state: homo pentamer
Accessible surface area: 40871.38 Å2
Buried surface area: 14270.22 Å2
Dissociation area: 6,710.26 Å2
Dissociation energy (ΔGdiss): 26.44 kcal/mol
Dissociation entropy (TΔSdiss): 54.24 kcal/mol
Symmetry number: 5
PDBe Complex ID: PDB-CPX-157653
Complex Portal ID: CPX-259

Macromolecules

Acetylcholine-binding protein
Chains: A, B, C, D, E, F, G, H, I, J
Length: 206 amino acids
Theoretical weight: 23.42 KDa
Source organism: Lymnaea stagnalis
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P58154 (Residues: 20-225; Coverage: 98%)
Pfam: Neurotransmitter-gated ion-channel ligand binding domain
Acetylcholine-binding protein in PDB entry 8q1t, assembly 1, front view.
Acetylcholine-binding protein in PDB entry 8q1t, assembly 1, side view.
Acetylcholine-binding protein in PDB entry 8q1t, assembly 1, top view.
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