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Co-crystal structure of alpha glucosidase with compound 10

Analyse Co-crystal structure of alpha glucosidase with compound 10 in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7KBR
Type
protein
Length
1,876 residues
Chains
8
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Neutral alpha-glucosidase ab trypsin-cleaved fragment #1; Neutral alpha-glucosidase ab…
EC
3.2.1.207
UniProt
Q8BHN3, O08795
Ligands
WAS, CA, SO4
Pockets
20 · best druggability 0.68

Structure

x-ray diffraction · 7 distinct chains · 16% helix, 31% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
GNeutral alpha-glucosidase ab trypsin-cleaved fragment #1 (EC 3.2.1.207)protein1519% helix, 46% strandQ8BHN3
HNeutral alpha-glucosidase ab trypsin-cleaved fragment #2 (EC 3.2.1.207)protein1050% helix, 37% strandQ8BHN3
A, CNeutral alpha-glucosidase ab trypsin-cleaved fragment #3 (EC 3.2.1.207)protein59728% helix, 27% strandQ8BHN3
BGlucosidase 2 subunit betaprotein837% helix, 14% strandO08795
INeutral alpha-glucosidase ab trypsin-cleaved fragment #1 (EC 3.2.1.207)protein1527% helix, 45% strandQ8BHN3
JNeutral alpha-glucosidase ab trypsin-cleaved fragment #2 (EC 3.2.1.207)protein1070% helix, 37% strandQ8BHN3
DGlucosidase 2 subunit betaprotein847% helix, 14% strandO08795

Ligands and binding sites

  • WAS · 2-{[2-nitro-4-(triazan-1-yl)phenyl]amino}ethyl (2-{[(1S,2S,3R,4S,5S)-2,3,4,5-tetrahydroxy-5-(hydroxymethyl)cyclohexyl]amino}ethyl)carbamate · ligand · 2 copies · chains H, A, C, J
  • CA · Calcium ion · metal · 4 copies · chains B, A, D, C
  • SO4 · Sulfate ion · ion · 8 copies · chains H, A, C, B
  • EDO · 1,2-ethanediol · additive · 31 copies · chains G, H, A, C, B, I, J, D
  • PEG · Di(hydroxyethyl)ether · additive · 14 copies · chains G, A, B, H, C, D
  • PGE · Triethylene glycol · additive · 5 copies · chains A, B, G
  • PG4 · Tetraethylene glycol · additive · 3 copies · chains A, B, C, D

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

Pockets

20 pockets found on a 1 Å grid, 9 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12530.680.8436SO4
22770.610.7945SO4, PEG, WAS
32450.580.7838EDO, WAS
43340.570.7653PGE, EDO
53280.560.7542PG4

Interfaces

9 interfaces between chains.

  • J–C · 3907 Ų buried · 72 hydrogen bonds · protein-protein
  • H–A · 3879 Ų buried · 69 hydrogen bonds · protein-protein
  • I–J · 1968 Ų buried · 36 hydrogen bonds · protein-protein
  • G–H · 1916 Ų buried · 28 hydrogen bonds · protein-protein
  • G–A · 1767 Ų buried · 21 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 14 disulfide, 3 covalent (disulfide, additive adduct).

Compared structures

  • 7KBR · Co-crystal structure of alpha glucosidase with compound 10 · the same entry in another collection · chain D against D, TM-score 1.00
  • Q8BHN3 · AlphaFold monomer V2.0 prediction for neutral alpha-glucosidase ab (Q8BHN3) · a predicted model of the same protein · chain A against A, TM-score 1.00

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