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Pig pancreatic alpha-amylase complexed with the oligosaccharide V-1532

Analyse Pig pancreatic alpha-amylase complexed with the oligosaccharide V-1532 in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1PIG
Type
protein
Length
496 residues
Chains
1
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Alpha-amylase
EC
3.2.1.1
UniProt
P00690
Ligands
AGL, HMC, GLC, BGC, CA, CL
Pockets
4 · best druggability 0.59

Structure

x-ray diffraction · 1 distinct chain · 28% helix, 23% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AAlpha-amylase (EC 3.2.1.1)protein49628% helix, 23% strandP00690

Ligands and binding sites

  • AGL · 4-amino-4,6-dideoxy-alpha-D-glucopyranose · ligand · 2 copies · chains A
  • HMC · 5-hydroxymethyl-chonduritol · ligand · chains A
  • GLC · alpha-D-glucopyranose · sugar · 5 copies · chains A
  • BGC · beta-D-glucopyranose · sugar · 3 copies · chains A
  • CA · Calcium ion · metal · chains A
  • CL · Chloride ion · ion · chains A

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12640.590.7924GLC, AGL, HMC
2790.380.7821empty
3760.360.7613empty
4720.320.7520empty

Modifications

Observed in the structure: 5 disulfide, 1 modified (disulfide, cyclization).

Compared structures

  • 1PIG · Pig pancreatic alpha-amylase complexed with the oligosaccharide V-1532 · the same entry in another collection · chain A against A, TM-score 1.00
  • P00690 · AlphaFold monomer V2.0 prediction for pancreatic alpha-amylase (P00690) · a predicted model of the same protein · chain A against A, TM-score 1.00

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