8GUF

Crystal structure of cyclic B subunit of type II heat labile enterotoxin

• PDB DOI: https://doi.org/10.2210/pdb8GUF/pdb

• Classification: RECOMBINATION
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2022-09-12 Released: 2023-09-20 
• Deposition Author(s): Peng, Y.J., Wu, C.Y., Sue, S.C.
• Funding Organization(s): Ministry of Science and Technology (MoST, Taiwan)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free: 0.260 
• R-Value Work: 0.214 
• R-Value Observed: 0.216 

Literature

Crystal structure of cyclic B subunit of type II heat labile enterotoxin

Peng, Y.J., Wu, C.Y., Sue, S.C.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C5  (Explore in 3D)
Global Stoichiometry: Homo 5-mer - A5 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: SAXS, equilibrium centrifugation, gel filtration, mass spectrometry

Macromolecule Content

• Total Structure Weight: 55.33 kDa 
• Atom Count: 3,830 
• Modelled Residue Count: 513 
• Deposited Residue Count: 515 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Heat-labile enterotoxin IIB, B chain	A, E	103	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P43529 (Escherichia coli) Explore P43529  Go to UniProtKB:  P43529

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Heat-labile enterotoxin IIB, B chain	B, C, D	103	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P43529 (Escherichia coli) Explore P43529  Go to UniProtKB:  P43529

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free: 0.260 
• R-Value Work: 0.214 
• R-Value Observed: 0.216 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 132.129	α = 90
b = 70.178	β = 117
c = 60.772	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
HKL-2000	data scaling
HKL-2000	data reduction
PHENIX	refinement
MOLREP	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-09-20 
Deposition Author(s): Peng, Y.J., Wu, C.Y., Sue, S.C.

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Funding Organization	Location	Grant Number
Ministry of Science and Technology (MoST, Taiwan)	Taiwan	--

Revision History  

• Version 1.0: 2023-09-20
  Type: Initial release