2o2l

X-ray diffraction
2.53Å resolution

Crystal structure of human heat-labile enterotoxin in complex with a blood group A antigen analog

Released:
Source organism: Escherichia coli

Function and Biology Details

Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
homo pentamer (preferred)
PDBe Complex ID:
PDB-CPX-143523 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
Heat-labile enterotoxin B chain Chains: D, E, F, G, H, I, J, K, L, M
Molecule details ›
Chains: D, E, F, G, H, I, J, K, L, M
Length: 103 amino acids
Theoretical weight: 11.73 KDa
Source organism: Escherichia coli
Expression system: Vibrio cholerae
UniProt:
  • Canonical: P0CK94 (Residues: 22-123; Coverage: 99%)
Gene names: eltB, ltpB
Sequence domains: Heat-labile enterotoxin beta chain
Structure domains: OB fold (Dihydrolipoamide Acetyltransferase, E2P)

Ligands and Environments

Carbohydrate polymer : NEW Components: BGC, GAL, FUC, A2G
No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: MAX II BEAMLINE I911-5
Spacegroup: P21212
Unit cell:
a: 117.799Å b: 166.965Å c: 57.478Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.184 0.181 0.237
Expression system: Vibrio cholerae