5eld

X-ray diffraction
1.4Å resolution

Cholera toxin classical B-pentamer in complex with A Lewis-y

Released:

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:

Structure analysis Details

Assembly composition:
homo pentamer (preferred)
PDBe Complex ID:
PDB-CPX-112804 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
Cholera toxin B Chains: A, B, C, D, E
Molecule details ›
Chains: A, B, C, D, E
Length: 103 amino acids
Theoretical weight: 11.62 KDa
Source organism: Vibrio cholerae O1
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: D6R7L2 (Residues: 22-124; Coverage: 100%)
Gene name: ctxB
Sequence domains: Heat-labile enterotoxin beta chain
Structure domains: OB fold (Dihydrolipoamide Acetyltransferase, E2P)

Ligands and Environments

Carbohydrate polymer : NEW Components: GAL, NDG, FUC, A2G
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: P212121
Unit cell:
a: 69.7Å b: 69.806Å c: 134.735Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.172 0.171 0.193
Expression system: Escherichia coli BL21(DE3)