2cey

X-ray diffraction
1.7Å resolution

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-155185 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Sialic acid-binding periplasmic protein SiaP Chain: A
Molecule details ›
Chain: A
Length: 306 amino acids
Theoretical weight: 34.2 KDa
Source organism: Haemophilus influenzae
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P44542 (Residues: 24-329; Coverage: 100%)
Gene names: HI_0146, siaP
Sequence domains: Bacterial extracellular solute-binding protein, family 7
Structure domains: Bacterial extracellular solute-binding protein, family 7

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM14
Spacegroup: I222
Unit cell:
a: 46.761Å b: 102.508Å c: 202.648Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.196 0.194 0.236
Expression system: Escherichia coli BL21(DE3)