9T28 | pdb_00009t28

WspR response regulator with crystallization epitope mutations G306D:G308D

• PDB DOI: https://doi.org/10.2210/pdb9T28/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Pseudomonas aeruginosa
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2025-10-22 Released: 2025-12-10 
• Deposition Author(s): Fairhead, M., Wiggers, H., Strain-Damerell, C., Ye, M., Mackinnon, S.R., Pinkas, D., MacLean, E.M., Koekemoer, L., Bowesman-Jones, H., Damerell, D., Krojer, T., Arrowsmith, C.H., Edwards, A., Bountra, C., Yue, W., Burgess-Brown, N., Marsden, B., von Delft, F.
• Funding Organization(s): The Structural Genomics Consortium (SGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.33 Å
• R-Value Free: 
  0.213 (Depositor), 0.213 (DCC) 
• R-Value Work: 
  0.164 (Depositor), 0.164 (DCC) 

Starting Model: experimental

Literature

WspR response regulator with crystallization epitope mutations G306D:G308D

Fairhead, M., Wiggers, H., Strain-Damerell, C., Ye, M., Mackinnon, S.R., Pinkas, D., MacLean, E.M., Koekemoer, L., Bowesman-Jones, H., Damerell, D., Krojer, T., Arrowsmith, C.H., Edwards, A., Bountra, C., Yue, W., Burgess-Brown, N., Marsden, B., von Delft, F.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 18.72 kDa 
• Atom Count: 1,455 
• Modeled Residue Count: 168 
• Deposited Residue Count: 168 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
diguanylate cyclase	A	168	Pseudomonas aeruginosa	Mutation(s): 2  Gene Names: wspR, PA3702 EC: 2.7.7.65
UniProt
Find proteins for Q9HXT9 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore Q9HXT9  Go to UniProtKB:  Q9HXT9

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.33 Å
• R-Value Free:  0.213 (Depositor), 0.213 (DCC) 
• R-Value Work:  0.164 (Depositor), 0.164 (DCC) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 34.12	α = 90
b = 45.4	β = 90
c = 85.23	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
xia2	data reduction
xia2	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-10 
Deposition Author(s): Fairhead, M., Wiggers, H., Strain-Damerell, C., Ye, M., Mackinnon, S.R., Pinkas, D., MacLean, E.M., Koekemoer, L., Bowesman-Jones, H., Damerell, D., Krojer, T., Arrowsmith, C.H., Edwards, A., Bountra, C., Yue, W., Burgess-Brown, N., Marsden, B., von Delft, F.

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Funding Organization	Location	Grant Number
The Structural Genomics Consortium (SGC)	Canada	--

Revision History  

• Version 1.0: 2025-12-10
  Type: Initial release