2v72

X-ray diffraction
2.25Å resolution

The structure of the family 32 CBM from C. perfringens NanJ in complex with galactose

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-186904 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
exo-alpha-sialidase Chain: A
Molecule details ›
Chain: A
Length: 143 amino acids
Theoretical weight: 15.14 KDa
Source organism: Clostridium perfringens
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: Q8XMY5 (Residues: 41-180; Coverage: 12%)
Gene name: nanJ
Sequence domains: F5/8 type C domain
Structure domains: Galactose-binding domain-like

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: P212121
Unit cell:
a: 42.265Å b: 45.86Å c: 69.003Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.258 0.251 0.325
Expression system: Escherichia coli BL21