› 2e7q

X-ray diffraction
2.75Å resolution

Crystal structure of basic winged bean lectin in complex with b blood group trisaccharide

Released:
DOI: 10.2210/pdb2e7q/pdb
PDB entry 2e7q coloured by chain, front view.
PDB entry 2e7q coloured by chain, side view.
PDB entry 2e7q coloured by chain, top view.
Source organism: Psophocarpus tetragonolobus
Primary publication:
Generation of blood group specificity: new insights from structural studies on the complexes of A- and B-reactive saccharides with basic winged bean agglutinin.
Kulkarni KA, Katiyar S, Surolia A, Vijayan M, Suguna K
Proteins 68 762-9 (2007)
PMID: 17510954

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-127671 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (5 distinct):
Basic agglutinin Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 237 amino acids
Theoretical weight: 26.01 KDa
Source organism: Psophocarpus tetragonolobus
UniProt:
  • Canonical: O24313 (Residues: 2-238; Coverage: 98%)
Gene name: WBAI
Sequence domains: Legume lectin domain
Structure domains: Jelly Rolls

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG, FUC
Carbohydrate polymer
Carbohydrate polymer : NEW Components: NAG, FUC, NDG
Carbohydrate polymer
Carbohydrate polymer : NEW Components: NAG
Carbohydrate polymer
Carbohydrate polymer : NEW Components: GLC, GAL, GLA
Carbohydrate polymer
2 bound ligands:
Ligand CA 4 x CA
Ligand MN 4 x MN
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU300
Spacegroup: P21212
Unit cell:
a: 157.41Å b: 90.545Å c: 73.324Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.198 0.198 0.258

Quick links

Citations

9 citation in other articles

Divergent modes of glycan recognition by a new family of carbohydrate-binding modules.
Gregg et al. (2008)
8 more