8GUF | pdb_00008guf

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)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.99 Å
R-Value Free:
0.260 (Depositor), 0.254 (DCC)
R-Value Work:
0.214 (Depositor), 0.219 (DCC)
R-Value Observed:
0.216 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

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This is version 1.2 of the entry. See complete history.

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.

Macromolecule Content

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

Macromolecules

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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 Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P43529
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

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
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P43529
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.99 Å
R-Value Free: 0.260 (Depositor), 0.254 (DCC)
R-Value Work: 0.214 (Depositor), 0.219 (DCC)
R-Value Observed: 0.216 (Depositor)

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

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Entry History

& Funding Information

Deposition Data

Released Date: 2023-09-20

Deposition Author(s):

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

Revision History (Full details and data files)

Version 1.0: 2023-09-20
Type: Initial release
Version 1.1: 2024-10-23
Changes: Structure summary
Version 1.2: 2026-03-04
Changes: Refinement description

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.