› 4lk7

X-ray diffraction
1.76Å resolution

Crystal Structure of Pseudomonas aeruginosa Lectin LecA Complexed with Resorufin-b-D-galactopyranoside at 1.76 A Resolution

Released:
DOI: 10.2210/pdb4lk7/pdb
PDB entry 4lk7 coloured by chain, front view.
PDB entry 4lk7 coloured by chain, side view.
PDB entry 4lk7 coloured by chain, top view.
Source organism: Pseudomonas aeruginosa PAO1
Primary publication:
CH-π "T-shape" interaction with histidine explains binding of aromatic galactosides to Pseudomonas aeruginosa lectin LecA.
Kadam RU, Garg D, Schwartz J, Visini R, Sattler M, Stocker A, Darbre T, Reymond JL
ACS Chem Biol 8 1925-30 (2013)
PMID: 23869965

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assemblies composition:
homo tetramer
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-170132 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
PA-I galactophilic lectin Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 121 amino acids
Theoretical weight: 12.77 KDa
Source organism: Pseudomonas aeruginosa PAO1
Expression system: Escherichia coli
UniProt:
  • 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

3 bound ligands:
Ligand CA 4 x CA
Ligand 04G 4 x 04G
Ligand GAL 4 x GAL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X06DA
Spacegroup: P212121
Unit cell:
a: 49.585Å b: 69.576Å c: 158.312Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.196 0.195 0.223
Expression system: Escherichia coli

Quick links

Citations

5 review citations

Pathoblockers or antivirulence drugs as a new option for the treatment of bacterial infections.
Calvert et al. (2018)
4 more

1 mention without citation

Predicting binding sites from unbound versus bound protein structures.
Clark et al. (2020)