5bo9

X-ray diffraction
2.3Å resolution

Structure of human sialyltransferase ST8SiaIII in complex with CMP-3FNeu5Ac and Sia-6S-LacNAc

Released:

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-128863 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (4 distinct):
Alpha-N-acetylneuraminate alpha-2,8-sialyltransferase ST8SIA3 Chains: A, B
Molecule details ›
Chains: A, B
Length: 323 amino acids
Theoretical weight: 37.92 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: O43173 (Residues: 81-380; Coverage: 79%)
Gene names: SIAT8C, ST8SIA3
Sequence domains: Glycosyltransferase family 29 (sialyltransferase)
Structure domains: Glycosyl transferase family 29

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG
Carbohydrate polymer : NEW Components: NAG, FUC
Carbohydrate polymer : NEW Components: NGS, GAL, SIA
2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: P212121
Unit cell:
a: 63.35Å b: 94.874Å c: 126.459Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.187 0.185 0.23
Expression system: Spodoptera frugiperda