PDBe 4ks1

X-ray diffraction
2.2Å resolution

Influenza neuraminidase in complex with antiviral compound (3S,4R,5R)-4-(acetylamino)-3-amino-5-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylic acid


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:
Cellular component:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Neuraminidase Chain: A
Molecule details ›
Chain: A
Length: 390 amino acids
Theoretical weight: 43.2 KDa
Source organism: Influenza A virus (A/duck/Ukraine/1/1963(H3N8))
Expression system: Escherichia coli
  • Canonical: Q07599 (Residues: 81-470; Coverage: 83%)
Gene name: NA
Sequence domains: Neuraminidase
Structure domains: Neuraminidase

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: I4
Unit cell:
a: 90.253Å b: 90.253Å c: 94.116Å
α: 90° β: 90° γ: 90°
R R work R free
0.155 0.153 0.201
Expression system: Escherichia coli