3zqb

X-ray diffraction
2.4Å resolution

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-154436 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Cell invasion protein SipD; SPI-1 type 3 secretion system needle filament protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 305 amino acids
Theoretical weight: 33.16 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P41784 (Residues: 1-80; Coverage: 100%)
  • Canonical: Q56026 (Residues: 122-343; Coverage: 65%)
Gene names: STM2873, STM2883, prgI, sctF1, sipD, sspD
Sequence domains:
Structure domains: IpaD-like

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.1
Spacegroup: C2
Unit cell:
a: 172.229Å b: 48.055Å c: 103.687Å
α: 90° β: 121.94° γ: 90°
R-values:
R R work R free
0.222 0.222 0.251
Expression system: Escherichia coli BL21(DE3)