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MolNFT v1 · #77558 · protein

The acid beta-glucosidase active site exhibits plasticity in binding 3,4,5,6-tetrahydroxyazepane-based inhibitors: implications for pharmacological chaperone design for gaucher disease

3RIL · Glucosylceramidase: “The acid beta-glucosidase active site exhibits plasticity in binding 3,4,5,6-tetrahydroxyazepane-based…”. X-ray diffraction, 3 ligands (3RK, NAG, SO4), 16 pockets (best druggability 0.84). MolNFT v1 #77558 on…

PDB
3RIL
Type
protein
Length
1,986 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Glucosylceramidase
EC
3.2.1.45
UniProt
P04062
Ligands
3RK, NAG, SO4
Pockets
16 · best druggability 0.84

Structure

x-ray diffraction · 2 distinct chains · 27% helix, 28% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, CGlucosylceramidase (EC 3.2.1.45)protein49627% helix, 29% strandP04062
B, DGlucosylceramidase (EC 3.2.1.45)protein49727% helix, 28% strandP04062

Ligands and binding sites

  • 3RK · (3S,4R,5R,6S)-azepane-3,4,5,6-tetrol · ligand · 4 copies · chains A, B, C, D
  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 4 copies · chains A, B, C, D
  • SO4 · Sulfate ion · ion · 36 copies · chains A, B, C, D

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

Pockets

16 pockets found on a 1 Å grid, 12 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
18540.840.8787SO4
211390.810.82913RK
35260.780.85593RK
44520.670.7950empty
53240.660.8143empty

Interfaces

5 interfaces between chains.

  • B–C · 1046 Ų buried · 5 hydrogen bonds · protein-protein
  • A–D · 1030 Ų buried · 3 hydrogen bonds · protein-protein
  • A–B · 677 Ų buried · 3 hydrogen bonds · protein-protein
  • C–D · 668 Ų buried · 4 hydrogen bonds · protein-protein
  • B–D · 184 Ų buried · 0 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 8 disulfide, 3 glycan (disulfide, N-glycosylation).

Compared structures

  • 3RIL · The acid beta-glucosidase active site exhibits plasticity in binding… · the same entry in another collection · chain D against D, TM-score 1.00
  • P04062 · AlphaFold monomer V2.0 prediction for lysosomal acid glucosylceramidase (P04062) · a predicted model of the same protein · chain B against A, TM-score 1.00

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