X-ray diffraction
2.05Å resolution

X-ray structure of PsaA from Yersinia pestis, in complex with galactose


Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
pH 6 antigen Chains: A, B
Molecule details ›
Chains: A, B
Length: 145 amino acids
Theoretical weight: 16.25 KDa
Source organism: Yersinia pestis
Expression system: Escherichia coli
  • Canonical: P31522 (Residues: 45-158, 27-44; Coverage: 100%)
Gene names: YPO1303, YP_1289, psaA, y2882
Structure domains: Immunoglobulin-like

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P65
Unit cell:
a: 59.266Å b: 59.266Å c: 200.088Å
α: 90° β: 90° γ: 120°
R R work R free
0.245 0.243 0.279
Expression system: Escherichia coli