PDBe 5eq3

X-ray diffraction
2Å resolution

Crystal structure of the SrpA adhesin from Streptococcus sanguinis with a sialyl galactose disaccharide bound


Function and Biology Details

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

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo tetramer
Entry contents:
1 distinct polypeptide molecule
Platelet-binding glycoprotein Chains: A, B
Molecule details ›
Chains: A, B
Length: 201 amino acids
Theoretical weight: 22.05 KDa
Source organism: Streptococcus sanguinis SK36
Expression system: Escherichia coli
  • Canonical: A3CM52 (Residues: 249-449; Coverage: 12%)
Gene names: SSA_0829, srpA

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-G
Spacegroup: C2
Unit cell:
a: 174.62Å b: 47.005Å c: 64.026Å
α: 90° β: 102.15° γ: 90°
R R work R free
0.2 0.198 0.243
Expression system: Escherichia coli