› 1s1a

X-ray diffraction
1.8Å resolution

Pterocarpus angolensis seed lectin (PAL) with one binding site free and one binding site containing the disaccharide Man(a1-3)ManMe

Released:
DOI: 10.2210/pdb1s1a/pdb
PDB entry 1s1a coloured by chain, front view.
PDB entry 1s1a coloured by chain, side view.
PDB entry 1s1a coloured by chain, top view.
Source organism: Pterocarpus angolensis
Entry authors: Buts L, Imberty A, Wyns L, Beeckmans S, Loris R

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-184567 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
Legume lectin domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 252 amino acids
Theoretical weight: 27.56 KDa
Source organism: Pterocarpus angolensis
UniProt:
  • Canonical: Q8GSD2 (Residues: 9-260; Coverage: 97%)
Sequence domains: Legume lectin domain
Structure domains: Jelly Rolls

Ligands and Environments

Carbohydrate polymer : NEW Components: MMA, MAN
Carbohydrate polymer
2 bound ligands:
Ligand MN 2 x MN
Ligand CA 2 x CA
1 modified residue:
Ligand PCA 2 x PCA

Experiments and Validation Details

Entry percentile scores
X-ray source: EMBL/DESY, HAMBURG BEAMLINE X11
Spacegroup: P212121
Unit cell:
a: 56.868Å b: 83.212Å c: 123.23Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.198 0.185 0.205

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