3RQI

Crystal structure of a response regulator protein from Burkholderia pseudomallei with a phosphorylated aspartic acid, calcium ion and citrate

• PDB DOI: https://doi.org/10.2210/pdb3RQI/pdb

• Classification: TRANSCRIPTION
• Organism(s): Burkholderia pseudomallei 1710b
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-04-28 Released: 2011-05-11 
• Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.239 
• R-Value Work: 0.206 
• R-Value Observed: 0.208 

Starting Model: experimental

Literature

Crystal structure of a response regulator protein from Burkholderia pseudomallei with a phosphorylated aspartic acid, calcium ion and citrate

Edwards, T.E., Davies, D.R., Sankaran, B., Seattle Structural Genomics Center for Infectious Disease (SSGCID)

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)

Macromolecule Content

• Total Structure Weight: 20.69 kDa 
• Atom Count: 1,433 
• Modelled Residue Count: 170 
• Deposited Residue Count: 184 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Response regulator protein	A	184	Burkholderia pseudomallei 1710b	Mutation(s): 0  Gene Names: BURPS1710b_0384
UniProt
Find proteins for Q3JXA5 (Burkholderia pseudomallei (strain 1710b)) Explore Q3JXA5  Go to UniProtKB:  Q3JXA5

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CIT	C [auth A]	CITRIC ACID C6 H8 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-N
SO4	D [auth A], E [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	F [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CA	B [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
PHD	A	L-PEPTIDE LINKING	C4 H8 N O7 P		ASP

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.239 
• R-Value Work: 0.206 
• R-Value Observed: 0.208 
• Space Group: P 3₁ 2 1
• Diffraction Data: https://doi.org/10.18430/M33RQI

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 55.24	α = 90
b = 55.24	β = 90
c = 95.42	γ = 120

Software Package:

Software Name	Purpose
XSCALE	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-05-11 
Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

Revision History  

• Version 1.0: 2011-05-11
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description