PDBe 1en2

X-ray diffraction
1.4Å resolution

UDA TETRASACCHARIDE COMPLEX. CRYSTAL STRUCTURE OF URTICA DIOICA AGGLUTININ, A SUPERANTIGEN PRESENTED BY MHC MOLECULES OF CLASS I AND CLASS II

Released:

Function and Biology Details

Reaction catalysed:
Random endo-hydrolysis of N-acetyl-beta-D-glucosaminide (1->4)-beta- linkages in chitin and chitodextrins. 
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero monomer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Lectin 1 Chain: A
Molecule details ›
Chain: A
Length: 89 amino acids
Theoretical weight: 9.35 KDa
Source organism: Urtica dioica
UniProt:
  • Canonical: P11218 (Residues: 24-112; Coverage: 26%)
Gene name: UDA1
Sequence domains: Chitin recognition protein

Ligands and Environments

1 bound ligand:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: LURE BEAMLINE D41A
Spacegroup: P212121
Unit cell:
a: 31.82Å b: 39.6Å c: 63.64Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.198 0.189 0.203