9BXP | pdb_00009bxp

Nanoparticle Crystal Structure of a Thermostabilized Mutant of an As-Isolated FtnA (Ferritin) from Pseudomonas aeruginosa

• PDB DOI: https://doi.org/10.2210/pdb9BXP/pdb

• Classification: METAL BINDING PROTEIN
• Organism(s): Pseudomonas aeruginosa
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-05-22 Released: 2025-11-26 
• Deposition Author(s): Seraj, N., Cappelli, L., Wahome, N., Cinelli, P., Fabiola, G., Cartocci, E., Delany, I., Cozzi, R.
• Funding Organization(s): Other private

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.33 Å
• R-Value Free: 
  0.217 (Depositor), 0.217 (DCC) 
• R-Value Work: 
  0.196 (Depositor), 0.196 (DCC) 
• R-Value Observed: 
  0.197 (Depositor) 

Starting Model: experimental

Literature

In silico Self-assembling Protein Nanoparticles Optimization for Protein Antigen display

Cappelli, L., Wahome, N., Cinelli, P., Giusti, F., Seraj, N., Cartocci, E., Harshbarger, W., Delany, I., Cozzi, R.

To be published.

Biological Assembly 1  

Global Symmetry: Octahedral - O  (Explore in 3D)
Global Stoichiometry: Homo 24-mer - A24 

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

Macromolecule Content 

• Total Structure Weight: 115.77 kDa 
• Atom Count: 7,989 
• Modeled Residue Count: 924 
• Deposited Residue Count: 990 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bacterioferritin	A, B, C, D, E, F	165	Pseudomonas aeruginosa	Mutation(s): 0  Gene Names: bfr, bfrA, PA4235 EC: 1.16.3.1
UniProt
Find proteins for Q9HWF9 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore Q9HWF9  Go to UniProtKB:  Q9HWF9

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.33 Å
• R-Value Free:  0.217 (Depositor), 0.217 (DCC) 
• R-Value Work:  0.196 (Depositor), 0.196 (DCC) 
• R-Value Observed: 0.197 (Depositor) 

Space Group: I 4

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 123.413	α = 90
b = 123.413	β = 90
c = 173.359	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
PHASER	phasing
HKL-2000	data reduction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-11-26 
Deposition Author(s): Seraj, N., Cappelli, L., Wahome, N., Cinelli, P., Fabiola, G., Cartocci, E., Delany, I., Cozzi, R.

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Funding Organization	Location	Grant Number
Other private	United States	--

Revision History  

• Version 1.0: 2025-11-26
  Type: Initial release