PDBe 2ags

X-ray diffraction
1.7Å resolution

Trypanosoma rangeli Sialidase in Complex with 2-Keto-3-deoxy-D-glycero-D-galacto-2,3-difluoro-nononic acid (2,3-difluoro-KDN)

Released:

Function and Biology Details

Reaction catalysed:
Hydrolysis of alpha-(2->3)-, alpha-(2->6)-, alpha-(2->8)- glycosidic linkages of terminal sialic acid residues in oligosaccharides, glycoproteins, glycolipids, colominic acid and synthetic substrates. 
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Sialidase Chain: A
Molecule details ›
Chain: A
Length: 652 amino acids
Theoretical weight: 71.21 KDa
Source organism: Trypanosoma rangeli
Expression system: Escherichia coli
UniProt:
  • Canonical: O44049 (Residues: 23-660; Coverage: 100%)
Sequence domains: BNR repeat-like domain
Structure domains:

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: P212121
Unit cell:
a: 73.672Å b: 95.569Å c: 105.816Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.156 0.154 0.189
Expression system: Escherichia coli