› 1qb5

X-ray diffraction
1.9Å resolution

ESCHERICHIA COLI HEAT LABILE ENTEROTOXIN TYPE IIB B-PENTAMER

Released:
DOI: 10.2210/pdb1qb5/pdb
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PDB entry 1qb5 coloured by chain, front view.
PDB entry 1qb5 coloured by chain, side view.
PDB entry 1qb5 coloured by chain, top view.
Source organism: Escherichia coli
Entry authors: Merritt EA, Hol WGJ

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo pentamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-155086 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Heat-labile enterotoxin IIB, B chain Chains: D, E, F, G, H
Molecule details ›
Chains: D, E, F, G, H
Length: 99 amino acids
Theoretical weight: 10.78 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P43529 (Residues: 24-122; Coverage: 100%)
Sequence domains: Type II heat-labile enterotoxin , B subunit (LT-IIB)
Structure domains: OB fold (Dihydrolipoamide Acetyltransferase, E2P)

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL7-1
Spacegroup: C2
Unit cell:
a: 76.091Å b: 67.573Å c: 90.287Å
α: 90° β: 113.15° γ: 90°
R-values:
R R work R free
0.177 0.177 0.237
Expression system: Escherichia coli

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