2x61

X-ray diffraction
1.95Å resolution

Crystal structure of the sialyltransferase CST-II in complex with trisaccharide acceptor and CMP

Released:

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
PDBe Complex ID:
PDB-CPX-192239 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
Alpha-2,3/8-sialyltransferase Chains: A, B
Molecule details ›
Chains: A, B
Length: 258 amino acids
Theoretical weight: 30.4 KDa
Source organism: Campylobacter jejuni
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9LAK3 (Residues: 1-258; Coverage: 89%)
Gene name: cst-II
Sequence domains: Alpha-2,3-sialyltransferase (CST-I)
Structure domains: Alpha-2,3-sialyltransferase

Ligands and Environments

Carbohydrate polymer : NEW Components: NGA, GAL, SIA
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: CLSI BEAMLINE 08ID-1
Spacegroup: P4
Unit cell:
a: 117.665Å b: 117.665Å c: 46.604Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.166 0.164 0.198
Expression system: Escherichia coli BL21(DE3)