6F03 | pdb_00006f03

The crystal structure of secreted antigen BPSL2520

• PDB DOI: https://doi.org/10.2210/pdb6F03/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Burkholderia pseudomallei K96243
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2017-11-17 Released: 2018-12-05 
• Deposition Author(s): Gourlay, L.J.
• Funding Organization(s): Fondazione CARIPLO

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 
  0.244 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.202 (Depositor), 0.200 (DCC) 
• R-Value Observed: 
  0.204 (Depositor) 

Literature

The crystal structure of secreted antigen BPSL2520

Gourlay, L.J.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly Evidence: SAXS, gel filtration

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 87.36 kDa 
• Atom Count: 4,996 
• Modelled Residue Count: 641 
• Deposited Residue Count: 796 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BPSL2520	A, B, C, D	199	Burkholderia pseudomallei K96243	Mutation(s): 0  Gene Names: BPSL2520
UniProt
Find proteins for Q63S01 (Burkholderia pseudomallei (strain K96243)) Explore Q63S01  Go to UniProtKB:  Q63S01

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	J [auth B], K [auth D]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
ACT	F [auth A], G [auth A], H [auth A], I [auth B]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M
CA	E [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B, C, D	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free:  0.244 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.202 (Depositor), 0.200 (DCC) 
• R-Value Observed: 0.204 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.955	α = 90
b = 52.731	β = 93.84
c = 136.122	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
Auto-Rickshaw	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2018-12-05 
Deposition Author(s): Gourlay, L.J.

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Funding Organization	Location	Grant Number
Fondazione CARIPLO	Italy	2009-3577

Revision History  

• Version 1.0: 2018-12-05
  Type: Initial release
  
• Version 1.1: 2024-10-23
  Changes: Author supporting evidence, Data collection, Database references, Structure summary