1t8u

X-ray diffraction
1.95Å resolution

Crystal Structure of human 3-O-Sulfotransferase-3 with bound PAP and tetrasaccharide substrate

Released:

Function and Biology Details

Reaction catalysed:
3'-phosphoadenylyl sulfate + [heparan sulfate]-glucosamine = adenosine 3',5'-bisphosphate + [heparan sulfate]-glucosamine 3-sulfate
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo tetramer
PDBe Complex ID:
PDB-CPX-195337 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
Heparan sulfate glucosamine 3-O-sulfotransferase 3A1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 272 amino acids
Theoretical weight: 31.13 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9Y663 (Residues: 139-406; Coverage: 66%)
Gene names: 3OST3A1, HS3ST3A, HS3ST3A1, UNQ2551/PRO6180
Sequence domains: Sulfotransferase domain
Structure domains: P-loop containing nucleotide triphosphate hydrolases

Ligands and Environments

Carbohydrate polymer : NEW Components: SGN, IDS, UAP
3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH3R
Spacegroup: C2221
Unit cell:
a: 80.806Å b: 154.525Å c: 91.931Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.2 0.199 0.222
Expression system: Escherichia coli