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Crystal structure of acetylcholine binding protein complexed with metocurine

Analyse Crystal structure of acetylcholine binding protein complexed with metocurine in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
3PEO
Type
protein
Length
2,062 residues
Chains
10
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Soluble acetylcholine receptor
UniProt
Q8WSF8
Ligands
CU9
Pockets
20 · best druggability 0.71

Structure

x-ray diffraction · 8 distinct chains · 9% helix, 51% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ASoluble acetylcholine receptorprotein2037% helix, 54% strandQ8WSF8
BSoluble acetylcholine receptorprotein20811% helix, 50% strandQ8WSF8
C, HSoluble acetylcholine receptorprotein21112% helix, 49% strandQ8WSF8
D, ISoluble acetylcholine receptorprotein2048% helix, 52% strandQ8WSF8
ESoluble acetylcholine receptorprotein2058% helix, 50% strandQ8WSF8
FSoluble acetylcholine receptorprotein2028% helix, 50% strandQ8WSF8
GSoluble acetylcholine receptorprotein20711% helix, 51% strandQ8WSF8
JSoluble acetylcholine receptorprotein2078% helix, 50% strandQ8WSF8

Ligands and binding sites

  • CU9 · 6,6',7',12'-tetramethoxy-2,2,2',2'-tetramethyltubocuraran-2,2'-diium · ligand · 8 copies · chains A, E, B, C, D, F, G, J, H, I

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

20 pockets found on a 1 Å grid, 20 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
16110.710.7963CU9
25880.690.7863CU9
36340.690.7771empty
45360.680.7849CU9
56120.670.7760CU9

Interfaces

13 interfaces between chains.

  • F–G · 1385 Ų buried · 18 hydrogen bonds · protein-protein
  • G–H · 1377 Ų buried · 17 hydrogen bonds · protein-protein
  • B–C · 1375 Ų buried · 17 hydrogen bonds · protein-protein
  • A–B · 1370 Ų buried · 16 hydrogen bonds · protein-protein
  • F–J · 1300 Ų buried · 15 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 20 disulfide (disulfide).

Compared structures

  • 3PEO · Crystal structure of acetylcholine binding protein complexed with metocurine · the same entry in another collection · chain A against A, TM-score 1.00

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