3b69

X-ray diffraction
1.67Å resolution

T cruzi Trans-sialidase complex with benzoylated NANA derivative

Released:
Source organism: Trypanosoma cruzi
Primary publication:
A new generation of specific Trypanosoma cruzi trans-sialidase inhibitors.
Angew Chem Int Ed Engl 47 2700-3 (2008)
PMID: 18300214

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.
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-173255 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Sialidase domain-containing protein Chain: A
Molecule details ›
Chain: A
Length: 648 amino acids
Theoretical weight: 71.39 KDa
Source organism: Trypanosoma cruzi
Expression system: Escherichia coli
UniProt:
  • Canonical: Q26964 (Residues: 33-665; Coverage: 61%)
Gene name: TCTS-154
Sequence domains: BNR repeat-like domain
Structure domains:

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-007 HF
Spacegroup: P21
Unit cell:
a: 54.43Å b: 129.2Å c: 54.44Å
α: 90° β: 107.53° γ: 90°
R-values:
R R work R free
0.147 0.147 0.183
Expression system: Escherichia coli