› 5lzj

X-ray diffraction
1.2Å resolution

Cholera toxin El Tor B-pentamer in complex with inhibitor Laura237

Released:
DOI: 10.2210/pdb5lzj/pdb
PDB 5lzj coloured by chain and viewed from the front.
PDB 5lzj coloured by chain and viewed from the side.
PDB 5lzj coloured by chain and viewed from the top.
Source organism: Vibrio cholerae O1 biovar El Tor str. N16961
Primary publication:
Towards new cholera prophylactics and treatment: Crystal structures of bacterial enterotoxins in complex with GM1 mimics.
Heggelund JE, Mackenzie A, Martinsen T, Heim JB, Cheshev P, Bernardi A, Krengel U
OpenAccess logo Sci Rep 7 2326 (2017)
PMID: 28539625

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo pentamer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Cholera enterotoxin subunit B Chains: A, B, C, D, E
Molecule details ›
Chains: A, B, C, D, E
Length: 103 amino acids
Theoretical weight: 11.66 KDa
Source organism: Vibrio cholerae O1 biovar El Tor str. N16961
Expression system: Vibrio sp.
UniProt:
  • Canonical: P01556 (Residues: 22-124; Coverage: 100%)
Gene names: VC_1456, ctxB, toxB
Sequence domains: Heat-labile enterotoxin beta chain
Structure domains: OB fold (Dihydrolipoamide Acetyltransferase, E2P)

Ligands and Environments

4 bound ligands:
Ligand SO4 1 x SO4
Ligand PEG 2 x PEG
Ligand PGE 2 x PGE
Ligand 7BT 2 x 7BT
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: C2
Unit cell:
a: 102.245Å b: 66.476Å c: 82.401Å
α: 90° β: 116.96° γ: 90°
R-values:
R R work R free
0.197 0.195 0.228
Expression system: Vibrio sp.

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Citations

1 review citation

Carbohydrate inhibitors of cholera toxin.
Kumar et al. (2018)
2 other articles