2IDF

P. aeruginosa azurin N42C/M64E double mutant, BMME-linked dimer

• PDB DOI: https://doi.org/10.2210/pdb2IDF/pdb

• Classification: ELECTRON TRANSPORT
• Organism(s): Pseudomonas aeruginosa
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2006-09-15 Released: 2008-03-18 
• Deposition Author(s): Einsle, O., de Jongh, T.E., Hoffmann, M., Cavazzini, D., Rossi, G.L., Ubbink, M., Canters, G.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.261 
• R-Value Work: 0.219 

Starting Model: experimental

Literature

Electron transfer in a crosslinked protein dimer mediated by a hydrogen-bonded network across the dimer interface

de Jongh, T.E., Hoffmann, M., Einsle, O., Cavazzini, D., Rossi, G.L., Ubbink, M., Canters, G.W.

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: 28.62 kDa 
• Atom Count: 2,104 
• Modelled Residue Count: 256 
• Deposited Residue Count: 256 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Azurin	A, B	128	Pseudomonas aeruginosa	Mutation(s): 2  Gene Names: azu
UniProt
Find proteins for P00282 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore P00282  Go to UniProtKB:  P00282

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
OPP	F [auth A]	1-[PYRROL-1-YL-2,5-DIONE-METHOXYMETHYL]-PYRROLE-2,5-DIONE C10 H8 N2 O5 UTRLJOWPWILGSB-UHFFFAOYSA-N
144	E [auth A], I [auth B]	TRIS-HYDROXYMETHYL-METHYL-AMMONIUM C4 H12 N O3 DRDCQJADRSJFFD-UHFFFAOYSA-N
CU	C [auth A], G [auth B]	COPPER (II) ION Cu JPVYNHNXODAKFH-UHFFFAOYSA-N
NI	D [auth A], H [auth B]	NICKEL (II) ION Ni VEQPNABPJHWNSG-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.261 
• R-Value Work: 0.219 
• Space Group: P 6₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.004	α = 90
b = 48.004	β = 90
c = 283.399	γ = 120

Software Package:

Software Name	Purpose
MAR345dtb	data collection
MOLREP	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-03-18 
Deposition Author(s): Einsle, O., de Jongh, T.E., Hoffmann, M., Cavazzini, D., Rossi, G.L., Ubbink, M., Canters, G.W.

Revision History  

• Version 1.0: 2008-03-18
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2021-10-20
  Changes: Database references, Derived calculations
• Version 1.3: 2023-08-30
  Changes: Data collection, Refinement description
• Version 1.4: 2024-10-09
  Changes: Structure summary