X-ray diffraction
1.9Å resolution

The Crystal Structure of the Salmonella Type III Secretion System Tip Protein SipD in Complex with Deoxycholate


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
Cell invasion protein SipD Chains: A, B
Molecule details ›
Chains: A, B
Length: 308 amino acids
Theoretical weight: 33.45 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium
Expression system: Escherichia coli
  • Canonical: Q56026 (Residues: 39-343; Coverage: 89%)
Gene names: STM2883, sipD, sspD
Structure domains: IpaD-like

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 17-BM
Spacegroup: C2
Unit cell:
a: 201.931Å b: 52.327Å c: 57.311Å
α: 90° β: 90.34° γ: 90°
R R work R free
0.199 0.196 0.257
Expression system: Escherichia coli