8GW2 | pdb_00008gw2

Escherichia Coli Heat Labile Enterotoxin Type IIB B-Pentamer Circular Permutant CP13-14

• PDB DOI: https://doi.org/10.2210/pdb8GW2/pdb

• Classification: TOXIN
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-09-16 Released: 2023-09-20 
• Deposition Author(s): Hsu, S.H., Yuan, Y.T., 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: 2.71 Å
• R-Value Free: 
  0.298 (Depositor), 0.298 (DCC) 
• R-Value Work: 
  0.206 (Depositor), 0.206 (DCC) 
• R-Value Observed: 
  0.215 (Depositor) 

Starting Model: experimental

Literature

Escherichia Coli Heat Labile Enterotoxin Type IIB B-Pentamer Circular Permutant (CP13-14)

Hsu, S.H., Yuan, Y.T., 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)

Macromolecule Content 

• Total Structure Weight: 55.33 kDa 
• Atom Count: 3,892 
• Modeled Residue Count: 515 
• Deposited Residue Count: 515 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Heat-labile enterotoxin IIB, B chain	A [auth D], B [auth A], C [auth B], D [auth C], E	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: 2.71 Å
• R-Value Free:  0.298 (Depositor), 0.298 (DCC) 
• R-Value Work:  0.206 (Depositor), 0.206 (DCC) 
• R-Value Observed: 0.215 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 70.43	α = 90
b = 69.54	β = 106.4
c = 107.484	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2023-09-20 
Deposition Author(s): Hsu, S.H., Yuan, Y.T., 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
  
• Version 1.1: 2024-11-13
  Changes: Structure summary
• Version 1.2: 2026-03-04
  Changes: Refinement description