4K2D

Crystal structure of Burkholderia Pseudomallei DsbA

• PDB DOI: https://doi.org/10.2210/pdb4K2D/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Burkholderia pseudomallei K96243
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-04-09 Released: 2013-08-14 
• Deposition Author(s): McMahon, R.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.193 
• R-Value Work: 0.159 
• R-Value Observed: 0.160 

Literature

Disarming Burkholderia pseudomallei: Structural and Functional Characterization of a Disulfide Oxidoreductase (DsbA) Required for Virulence In Vivo.

Ireland, P.M., McMahon, R.M., Marshall, L.E., Halili, M., Furlong, E., Tay, S., Martin, J.L., Sarkar-Tyson, M.

(2014) Antioxid Redox Signal 20: 606-617

• PubMed: 23901809 
• DOI: https://doi.org/10.1089/ars.2013.5375
• Primary Citation of Related Structures:  
  4K2D


• PubMed Abstract: 
  

  The intracellular pathogen Burkholderia pseudomallei causes the disease melioidosis, a major source of morbidity and mortality in southeast Asia and northern Australia. The need to develop novel antimicrobials is compounded by the absence of a licensed vaccine and the bacterium's resistance to multiple antibiotics. In a number of clinically relevant Gram-negative pathogens, DsbA is the primary disulfide oxidoreductase responsible for catalyzing the formation of disulfide bonds in secreted and membrane-associated proteins. In this study, a putative B. pseudomallei dsbA gene was evaluated functionally and structurally and its contribution to infection assessed.

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Organizational Affiliation: 

1 Defence Science and Technology Laboratory , Porton Down, Salisbury, Wiltshire, United Kingdom .

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 22.3 kDa 
• Atom Count: 1,696 
• Modelled Residue Count: 191 
• Deposited Residue Count: 200 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Thiol:disulfide interchange protein	A	200	Burkholderia pseudomallei K96243	Mutation(s): 0  Gene Names: BPSL0381, dsbA, thiol:disulfide interchange protein [Burkholderia pseudomallei K96243]
UniProt
Find proteins for Q63Y08 (Burkholderia pseudomallei (strain K96243)) Explore Q63Y08  Go to UniProtKB:  Q63Y08

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	B [auth A], C [auth A], D [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.193 
• R-Value Work: 0.159 
• R-Value Observed: 0.160 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 59.32	α = 90
b = 62.3	β = 90
c = 68.78	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-08-14 
Deposition Author(s): McMahon, R.M.

Revision History  

• Version 1.0: 2013-08-14
  Type: Initial release
  
• Version 1.1: 2013-10-30
  Changes: Database references
• Version 1.2: 2014-02-12
  Changes: Database references