X-ray diffraction
3.2Å resolution

Structure of porin Omp-Pst1 from P. stuartii; the crystallographic symmetry generates a dimer of trimers.


Function and Biology Details

Structure analysis Details

Assembly composition:
homo trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Porin 1 Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 352 amino acids
Theoretical weight: 39.03 KDa
Source organism: Providencia stuartii
Expression system: Escherichia coli BL21
  • Canonical: E3U904 (Residues: 23-374; Coverage: 94%)
Sequence domains: Gram-negative porin
Structure domains: Porin

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-4
Spacegroup: C2
Unit cell:
a: 151.52Å b: 142.02Å c: 113.32Å
α: 90° β: 131° γ: 90°
R R work R free
0.21 0.208 0.261
Expression system: Escherichia coli BL21