X-ray diffraction
1.75Å resolution

Crystal structure of the lectin PA-IL from Pseudomonas aeruginoas in complex with melibiose


Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
PA-I galactophilic lectin Chains: A, B, C, D, E, F, G, H
Molecule details ›
Chains: A, B, C, D, E, F, G, H
Length: 121 amino acids
Theoretical weight: 12.77 KDa
Source organism: Pseudomonas aeruginosa PAO1
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q05097 (Residues: 2-122; Coverage: 99%)
Gene names: PA2570, lecA, pa1L
Sequence domains: PA-IL-like protein
Structure domains: Galactose-binding lectin

Ligands and Environments

Carbohydrate polymer : NEW Components: GLA, GLC
3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: P1
Unit cell:
a: 50.07Å b: 58.13Å c: 75.94Å
α: 101.13° β: 92.89° γ: 100.98°
R R work R free
0.169 0.167 0.211
Expression system: Escherichia coli BL21(DE3)