The active center of a mammalian alpha-amylase. the structure of the complex of a pancreatic alpha-amylase with a carbohydrate inhibitor refined to 2.2 ångströms resolution

Structure

x-ray diffraction · 1 distinct chain · 29% helix, 24% strand (DSSP).

Ligands and binding sites

• DAF · 4,6-dideoxy-4-{[(1S,5R,6S)-3-formyl-5,6-dihydroxy-4-oxocyclohex-2-en-1-yl]amino}-alpha-D-xylo-hex-5-enopyranose · ligand · chains A
• GLC · alpha-D-glucopyranose · sugar · 2 copies · chains A
• BGC · beta-D-glucopyranose · sugar · 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.

Modifications

Observed in the structure: 5 disulfide (disulfide).

Compared structures

• 1PPI · The active center of a mammalian alpha-amylase. the structure of the complex of a… · 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

Analyse

• Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
• Every structure of UniProt P00690
• Elsewhere: RCSB PDB 1PPI · PDBe 1PPI · UniProt P00690